Windsurf

Key Terms

• Devin Desktop - the IDE formerly known as Windsurf, relaunched June 2, 2026. A full VS Code-compatible IDE with an "Agent Command Center" (a Kanban view for managing fleets of local and cloud agents) built in. The subreddit is still named r/windsurf. Source: Windsurf – Introducing Devin Desktop
• SWE-1.7 - Cognition's latest proprietary model for software engineering agents, released July 8, 2026. Trained from a Kimi K2.7 base via multi-cluster RL training across four datacenters on three continents. Served via Cerebras at 1000 tokens/second. Scores 42.3% on FrontierCode 1.1 Main (vs SWE-1.6's 9.4%) and 81.5% on Terminal-Bench 2.1. Free on all plans as of July 31. Source: Cognition – Swe 1 7
• SWE-1.7 Medium - a thinking variant of SWE-1.7 released around July 22 to address user feedback about SWE-1.7 "overthinking." More direct and suited for everyday engineering tasks. Confirmed via a Cognition email to a user, cited on Reddit. Source: Old – Ozwymy2
• FrontierCode 1.1 - refined version of Cognition's proprietary benchmark, released July 7, 2026. Adds "fair internet use" detection (prompt + programmatic verifier) to distinguish legitimate documentation lookups from solution retrieval. Relaxes 75 overly strict blocker criteria. Deprecates the Diamond subset due to noise. Source: Cognition – Frontier Code 1.1
• Devin Fusion - a multi-model harness released June 29 (preview) that runs a frontier "main" model and a cheaper "sidekick" model in parallel. A July 13 deep-dive showed Fable 5 + Sidekick costs less than Opus 4.8 + Sidekick ($1.86 vs $2.04 per task) despite Fable's 2x per-token premium, because Fable delegates more aggressively. Source: Cognition – Making Fable Cheaper Than Opus
• Agentic MapReduce - an architecture published July 1 for whole-codebase reasoning. An agent authors deterministic "selectors" that scan the entire repo, producing a finite work queue; parallel worker agents investigate bounded shards; a reducer synthesizes results. Powered by Devin Security Swarm. Source: Windsurf – Agentic Map Reduce
• Devin Security Swarm - a security scanning product launched July 1, powered by Agentic MapReduce. Finds vulnerabilities across the entire codebase, validates exploitability in a sandbox, and ships remediation PRs. Benchmark: 72% recall on 50 real CVEs at $90.23/scan, vs Claude Security at 68% recall and $131.87/scan. Source: Cognition – Introducing Devin Security Swarm
• Devin Outposts - a feature launched July 21 that lets Devin Cloud sessions run on any machine you operate (GPU box, VM in your VPC, Mac mini). Workers connect via outbound-only connections. Partners include Namespace, Cloudflare, Modal, NVIDIA, Daytona, and E2B. Source: Windsurf – Introducing Devin Outposts
• Stacked PRs - a feature launched July 30, partnered with GitHub. Devin automatically breaks large tasks into stacks of small, independently reviewable PRs and handles rebasing, conflict resolution, and CI verification across the stack. Source: Windsurf – Introducing Pr Stacks
• ACU (Agent Compute Unit) - Devin Cloud's billing unit for cloud agent usage. Specific per-model ACU rates are not published on the web pricing page. Source: Windsurf – Pricing
• Token-based billing - charges based on input and output tokens. Extra usage on paid plans is billed at per-model API rates shown in the IDE's model picker, not on the public pricing page. Source: Windsurf – Pricing

Latest Changes

Changes since the 2026-06 report.

June watch-items verification

• SWE-1.6 free promo ending ~July 7: partial. SWE-1.6 was not converted to a paid model on July 7. Instead, Cognition launched SWE-1.7 on July 8 as a free replacement, and free access to SWE-1.6/SWE-1.7 and GLM 5.2 was extended through at least August 8 to 15. A user on Reddit cited a Cognition email dated July 22: "We're extending free access to SWE-1.6 and GLM 5.2 through August 15 at 11:59pm PT." Another user reported "SWE 1.7 is now free until 8/8." The pricing page lists "Free use of SWE 1.7" on all plans. However, no post-promo price has been announced for any proprietary model, and the free period is now in its fifth month of rolling extensions with no permanent resolution. Sources: Windsurf – Pricing , Old – Ozwymy2 , Old – Ozvzsxk
• Devin Desktop adoption / community reception: confirmed continued backlash. The rebrand remains unpopular. The highest-engagement thread of July, "Windsurf/Devin, this is getting ridiculous" (45 points, 86% upvoted, 39 comments), was submitted July 18 by a user on the $200/month Max plan claiming to be "blocked after just a few prompts per week." Multiple commenters report they only stay for free GLM 5.2 and SWE-1.7 access. Source: Old – Windsurfdevin This Is Getting Ridiculous
• Devin Fusion adoption / results: still-pending. Fusion remains in preview in Devin Cloud only. A July 13 deep-dive post ("Making Fable Cheaper Than Opus") provided the first detailed cost data showing Fable 5 + Sidekick at $1.86/task vs Opus 4.8 + Sidekick at $2.04/task, but no general availability date, desktop support, or pricing has been announced. Source: Cognition – Making Fable Cheaper Than Opus
• Quota transparency improvements: failed. Quotas are still described only as "Light," "Increased," and "Significantly higher" with no published token counts, request limits, or credit amounts. No improvement was made in July. Source: Windsurf – Pricing

New July items

• New model (proprietary): SWE-1.7 launched July 8, trained from Kimi K2.7 base. Scores 42.3% on FrontierCode 1.1 Main (vs SWE-1.6's 9.4%), 81.5% on Terminal-Bench 2.1, 77.8% on SWE-Bench Multilingual. Served via Cerebras at 1000 TPS. A "Medium" thinking variant followed around July 22 to address "overthinking" feedback. Sources: Cognition – Swe 1 7 , Old – Ozwymy2
• New models (third-party): GPT-5.6 Sol, Terra, and Luna added July 9 across Devin Desktop and CLI. Three tiers: Sol (flagship), Terra (balanced, competitive with GPT-5.5 at half the price), Luna (fastest, lowest cost). GPT-5.6 Sol scores 63.6% on FrontierCode 1.1 Extended, second only to Opus 5 and Fable 5. Source: Windsurf – Gpt 5 6
• New model (third-party): Claude Opus 5 added July 23 across Devin Desktop, CLI, and Cloud. Scores 64.9% on FrontierCode 1.1 Extended, approaching Fable-level performance "at half the cost." Strong on debugging and root-cause analysis. Source: Windsurf – Claude Opus 5
• New model (open-weight): Kimi K3 added July 27 across Devin Desktop and CLI. Scores 59.6% on FrontierCode 1.1 Extended, surpassing GPT-5.5 (58.2%) and behind only Opus 4.8, GPT-5.6 Sol, Opus 5, and Fable 5. Described as the only open-source model at this performance tier, with particular strength on debugging. Source: Windsurf – Kimi K3
• Model restored: Claude Fable 5 returned July 1 to Devin Cloud (Ultra agent), Desktop, and CLI. It was removed June 12 following a US government export-control directive. Fable 5 remains the #1 model on FrontierCode 1.1 Extended. Source: Windsurf – Claude Fable 5 Available In Devin
• Benchmark update: FrontierCode 1.1 released July 7. Adds fair internet use detection, relaxes 75 overly strict blocker criteria, and deprecates the Diamond subset (too noisy). Going forward, only Main and Extended scores are reported. Source: Cognition – Frontier Code 1.1
• Feature added: Devin Outposts launched July 21. Lets Devin Cloud sessions execute on any machine the user operates (GPU box, VPC VM, Mac mini) via outbound-only worker connections. Reference implementations provided for Kubernetes, Modal, Cloudflare, Daytona, NVIDIA Brev/OpenShell, Namespace, and E2B. Source: Windsurf – Introducing Devin Outposts
• Feature added: Stacked PRs launched July 30 in partnership with GitHub. Devin automatically decomposes large tasks into stacks of small, reviewable PRs and handles rebasing, conflict resolution, and CI verification across the stack. Source: Windsurf – Introducing Pr Stacks
• New architecture: Agentic MapReduce published July 1. A Plan-Shard-Map-Reduce pipeline for whole-codebase reasoning. Powers Devin Security Swarm. Source: Windsurf – Agentic Map Reduce
• New product (security): Devin Security Swarm launched July 1. Scans entire codebases for vulnerabilities using Agentic MapReduce, validates exploitability in a sandbox, and opens remediation PRs. 72% recall on 50 real CVEs at $90.23/scan. Source: Cognition – Introducing Devin Security Swarm
• Enterprise: FedRAMP High In-Process announced July 13. The full Cognition platform (including Devin Cloud) is now FedRAMP Class D (High) In-Process and listed on the FedRAMP Marketplace. Devin Desktop and CLI were already FedRAMP High Authorized for ITAR and IL4-IL6. Source: Cognition – Devin Fedramp High In Process
• Government partnership: Cognition signed an MOU with the U.S. Department of Energy on July 22 to join the Genesis Mission ("America's Manhattan Project for AI"). Cognition will contribute code security, legacy modernization, and workforce capacity. Source: Cognition – Cognition Doe Genesis Mission
• Acquisitions: Cognition acquired TierZero (July 20) and The Interaction Company, makers of Poke (July 23). Both are described as talent/technology acquisitions. Sources: Cognition – Welcoming Tierzero , Cognition – Interaction
• Research: "Making Fable Cheaper Than Opus" published July 13. A deep-dive into Fusion cost dynamics showing Fable 5 + Sidekick ($1.86/task) is cheaper than Opus 4.8 + Sidekick ($2.04/task) because Fable delegates more aggressively (11.5 lead turns vs 26.5) and never edits code in 81% of runs. Source: Cognition – Making Fable Cheaper Than Opus
• Research: "Measuring the Trustworthiness of Open-Source-Derived Models" published July 8, alongside SWE-1.7. Claims models developed from open-source bases (like SWE-1.7 from Kimi K2.7) can be trusted with sufficient development care. Source: Cognition – Measuring Open Source Model Trustworthiness

Plans

Source: Windsurf – Pricing

Usage allowance details: Quotas are described only as "Light," "Increased/Standard," and "Significantly higher," with no published token counts, request limits, or credit amounts anywhere on the pricing page or FAQ. The FAQ states quotas "refresh automatically on a daily and weekly basis" but gives no amounts. This is a transparency gap that has persisted across all tracked months (April through July). Source: Windsurf – Pricing

Free SWE-1.7 and GLM 5.2: The pricing page lists "Free use of SWE 1.7" on all plans. The FAQ recommends "mini models like Haiku, GPT 5.2 Mini, and open source models like Kimi K2.5" to extend usage. Community reports and a cited Cognition email confirm SWE-1.7 and GLM 5.2 are free for subscribers through at least August 8 to 15, 2026, with rolling extensions. The "Kimi K2.5" reference in the FAQ differs from the Kimi K2.7 and K3 models that have been added to Devin, suggesting the FAQ may be outdated. Sources: Windsurf – Pricing , Old – Ozwymy2

Teams plan structure: Unchanged from June: $80/month base plus $40/month per "full dev seat," with unlimited non-quota "flex seats." Each full user includes their own quota and full Devin access. Source: Windsurf – Pricing

Extra usage: On paid plans, users can purchase extra usage beyond included quota at per-model API rates visible only in the IDE's model picker, not on the public pricing page. GPT-5.6 Sol "consumes ACUs at roughly the same rate as GPT-5.5." Source: Windsurf – Gpt 5 6

Free trial: Not listed on the current pricing page.

API Pricing

Devin does not offer standalone API access to its proprietary models (SWE-1.7, SWE-1.7 Medium, SWE-1.6). Usage is through Devin Desktop, Devin Cloud, Devin CLI, or the Devin API (available on Pro and higher). Extra usage on paid plans is billed at per-model API rates visible only in the IDE's model picker, not on the public pricing page.

Per-token dollar rates for third-party models are not published on the web. Cognition expresses relative cost in quota units (ACUs) rather than dollars. The one explicit per-token comparison is Fable 5 costing "2x more per token than Opus 4.8" (from the July 13 Fusion analysis). Source: Cognition – Making Fable Cheaper Than Opus

Devin Fusion cost data (internal benchmarking, FrontierCode 1.1 Extended, July 13 update): Cognition's own cost-per-task measurements, the only published per-task dollar figures:

Source: Cognition – Making Fable Cheaper Than Opus

GPT-5.6 cost-efficiency data (from GPT-5.6 launch post, FrontierCode 1.1 Extended vs cost per rollout): GPT-5.6 Sol achieves strong results at "nearly half of the cost of the next best model." Terra matches GPT-5.5-level performance "at about half the price." Luna delivers "the lowest cost per task of any model we tested." Exact per-token rates not published. Source: Windsurf – Gpt 5 6

Security Swarm pricing: $90.23 per scan (mean), vs Claude Security at $131.87, Codex Security at $118.20, and Cursor Security at $4.60. Source: Cognition – Introducing Devin Security Swarm

Per-model API rates for individual models (Opus 5, Opus 4.8, GPT-5.6 Sol/Terra/Luna, Gemini 3.5 Flash, Kimi K3, GLM 5.2, etc.) are visible in the IDE's model picker but not published on the web pricing page. This is a transparency gap.

Model Performance / Benchmarks

Cognition updated its benchmark to FrontierCode 1.1 on July 7. It refines the methodology to detect "unfair internet use" (retrieving task solutions from upstream repos or package registries) while preserving legitimate documentation lookups. It also relaxed 75 overly strict blocker criteria and deprecated the Diamond subset due to noise. Going forward, only Main (100 hardest tasks) and Extended (all 150 tasks) are reported. Source: Cognition – Frontier Code 1.1

FrontierCode 1.1 Extended (all 150 tasks, latest scores)

Sources: Windsurf – Kimi K3 , Windsurf – Claude Opus 5 , Windsurf – Gpt 5 6

FrontierCode 1.1 Main (100 hardest tasks)

Source: Cognition – Swe 1 7

Terminal-Bench 2.1

Source: Cognition – Swe 1 7

SWE-Bench Multilingual

Source: Cognition – Swe 1 7

SWE-1.7 vs SWE-1.6 leap: SWE-1.7 represents a massive improvement over SWE-1.6, jumping from 9.4% to 42.3% on FrontierCode 1.1 Main and from 39.7% to 81.5% on Terminal-Bench 2.1. Cognition attributes this to broad RL pipeline improvements including entropy preservation via top-p sampling replay, multi-cluster training across four datacenters on three continents, and self-compaction training for long-horizon tasks. The model was trained from a Kimi K2.7 base, which Cognition says "challenges the idea of a post-training ceiling." Source: Cognition – Swe 1 7

Benchmark transparency note: FrontierCode is Cognition's own proprietary benchmark; tasks are not released publicly to avoid contamination. Scores are self-reported and not independently reproducible. FrontierCode 1.1 itself notes that "the relative performances of the models we evaluated did not substantially change compared to 1.0," but absolute scores did shift. Source: Cognition – Frontier Code 1.1

Latest News

Claude Fable 5 restored to Devin (July 1, 2026)

Fable 5 returned to Devin Cloud (Ultra agent), Desktop, and CLI on July 1, after being removed June 12 following a US government export-control directive. It remains the #1 model on FrontierCode 1.1 Extended. Source: Windsurf – Claude Fable 5 Available In Devin

Agentic MapReduce and Devin Security Swarm launched (July 1, 2026)

Cognition published Agentic MapReduce, a Plan-Shard-Map-Reduce architecture for whole-codebase reasoning. The same day, Devin Security Swarm launched, powered by this architecture. Swarm scans entire codebases for vulnerabilities, validates exploitability in sandboxes, and opens remediation PRs. On a benchmark of 50 real CVEs, Swarm achieved 72% recall at $90.23/scan, beating Claude Security (68%, $131.87), Codex Security (48%, $118.20), and Cursor Security (26%, $4.60). Sources: Windsurf – Agentic Map Reduce , Cognition – Introducing Devin Security Swarm

FrontierCode 1.1 released (July 7, 2026)

Refines the benchmark with "fair internet use" detection (prompt + programmatic verifier), relaxing 75 overly strict blockers, and deprecating the Diamond subset. Unfair internet use rates fall below 1% for every evaluated model with the new safeguards. Source: Cognition – Frontier Code 1.1

SWE-1.7 launched (July 8, 2026)

Cognition's most capable proprietary model, trained from a Kimi K2.7 base via RL. Served via Cerebras at 1000 TPS. Scores 42.3% on FrontierCode 1.1 Main, 81.5% on Terminal-Bench 2.1, 77.8% on SWE-Bench Multilingual. Key technical contributions: entropy preservation via top-p sampling replay, multi-cluster training across four datacenters on three continents with compressed weight deltas, self-compaction training for long-horizon tasks (rollouts reach up to six hours), and an alternating length penalty. Source: Cognition – Swe 1 7

GPT-5.6 models added (July 9, 2026)

Three tiers: Sol (flagship, 63.6% FrontierCode 1.1 Extended), Terra (balanced, 56.2%), Luna (fastest, 55.8%). GPT-5.6 Sol consumes ACUs at roughly the same rate as GPT-5.5 with significantly better performance. Terra matches GPT-5.5 at about half the price. Available in Devin Desktop and CLI, with a Devin Cloud preview through July 16. Source: Windsurf – Gpt 5 6

FedRAMP High In-Process (July 13, 2026)

The full Cognition platform, including Devin Cloud, is now FedRAMP Class D (High) In-Process and listed on the FedRAMP Marketplace. Devin Desktop and CLI were already FedRAMP High Authorized for ITAR and IL4-IL6 workloads. Source: Cognition – Devin Fedramp High In Process

"Making Fable Cheaper Than Opus" published (July 13, 2026)

A deep-dive into Fusion cost dynamics across 3,000 FrontierCode 1.1 sessions. Key finding: Fable 5 + Sidekick ($1.86/task) is cheaper than Opus 4.8 + Sidekick ($2.04/task) despite Fable's 2x per-token premium, because Fable delegates earlier and more aggressively (11.5 lead turns vs 26.5), and in 81% of Fable-led runs the lead never makes a single code edit. Cognition characterizes the difference as "Opus behaves like a micromanager with an intern; Fable is a manager with a capable engineer." Source: Cognition – Making Fable Cheaper Than Opus

Devin Outposts launched (July 21, 2026)

Lets Devin Cloud sessions execute on any machine the user operates, via outbound-only worker connections. Use cases include debugging on GPU boxes, working against internal VPC services, and iOS development on Mac hardware. Partner integrations include Namespace (macOS via Apple M5), Cloudflare (isolated sandboxes), Modal, NVIDIA OpenShell, Daytona, and E2B. Source: Windsurf – Introducing Devin Outposts

DOE Genesis Mission MOU signed (July 22, 2026)

Cognition signed a memorandum of understanding with the U.S. Department of Energy to join the Genesis Mission, a national initiative to connect supercomputers with federal scientific datasets. Cognition will contribute code security, legacy modernization (Fortran, C++, COBOL), workforce capacity, and cloud modernization. Source: Cognition – Cognition Doe Genesis Mission

Claude Opus 5 added (July 23, 2026)

Added across Devin Desktop, CLI, and Cloud. Scores 64.9% on FrontierCode 1.1 Extended, #2 behind Fable 5. Strengths: targeted in-place bug fixes over large refactors, adhering to repo conventions, following specs closely. Source: Windsurf – Claude Opus 5

Kimi K3 added (July 27, 2026)

Added across Devin Desktop and CLI. Scores 59.6% on FrontierCode 1.1 Extended, surpassing GPT-5.5 (58.2%) and behind only Opus 4.8, GPT-5.6 Sol, Opus 5, and Fable 5. Described as the only open-source model at this tier, with particular strength on debugging (discovers ground truth by running code rather than pattern matching). Weakness: spec adherence. Source: Windsurf – Kimi K3

Stacked PRs launched (July 30, 2026)

Partnered with GitHub. Devin automatically breaks large tasks into stacks of small, independently reviewable PRs, handling rebasing, conflict resolution, and CI verification across the stack. Cites Faros AI data showing teams with high AI adoption merged 98% more PRs but saw review time rise 91% and average PR size grow 154%. Source: Windsurf – Introducing Pr Stacks

Acquisitions (July 2026)

Cognition acquired TierZero (July 20, automation tooling) and The Interaction Company, makers of Poke (July 23). Both are described as talent and technology acquisitions. Sources: Cognition – Welcoming Tierzero , Cognition – Interaction

Community Signals

Quota frustration peaks: "this is getting ridiculous" (45 points, 39 comments)

The highest-engagement r/windsurf thread of July was submitted July 18 by user Blackktigre (45 points, 86% upvoted, 39 comments). The original poster, on the $200/month Max plan, wrote: "Six months ago, with a $20/month plan, I could vibe code for days straight. Today, even with the $200/month plan, I'm blocked after just a few prompts per week, using the exact same models (GPT-5.3 Codex). You've turned a great product into a straight-up bait-and-switch." Old – Windsurfdevin This Is Getting Ridiculous

The most-upvoted comment (17 points) from Private_Part offered a practical workaround: "Glm 5.2 is better than 5.3 codex and free. Code as much as you want." Old – Oy9Ry1W

User EdmontonLAD (8 points) captured the value proposition that keeps users: "Only reason I'm Pro Devin is because free GLM 5.2 and free SWE 1.7. If those go, I go." Old – Oyb0Tgw

User b0nk4 (13 points) pushed back on the complaint: "If you use Codex wtf don't you have an OpenAI sub? Devin is completely fine if you use it with models that make sense (swe has worked out great for me)." Old – Oy9Z2Is

User Motor-Criticism3402 provided a striking data point on usage with free models: "Devin's GLM 5.2 carrying out the plans. My daily token consumption sits at roughly 600 million, with a 10-hour workday seven days a week, and I barely hit any usage caps at all." Old – Oyectms

Devin vs. Claude Code head-to-head: Devin loses on quota efficiency

A comparison thread (16 points, 95% upvoted, 7 comments) submitted July 19 by HI-HIHI-HOHO tested Pro plans of both Devin and Claude Code (in Cursor) on the same project for two weeks. The poster's key finding: "Claude's 5-hour usage limit delivers roughly the same amount of productive work as Devin Pro's weekly limit." Old – My Experience Comparing The Pro Plans Devin Vs

User marek-wildphoto9 shared a concrete example: "I worked on one problem with Devin for 2.5 hours... It was spending weekly quota very fast. I gave up and tried to do it with Claude Code Opus which solved it in 15 minutes and spent just small percent of 5 hours quota." Old – Ozk3Eti

User ultrathink-art offered a nuanced take on when each tool fits: "Devin hands you a finished diff to check, Claude Code lets you watch and interrupt. So Devin fits work where correctness is cheap to verify after the fact (tests, obvious pass/fail), and Claude Code fits work where a wrong turn is expensive to unwind and you'd rather stop it early." Old – Oyyl52G

Fable 5 cost shock: "burned through $40 + my entire allowance"

User critacle (11 points, 92% upvoted, 6 comments) reported on July 19: "It says it's 2x the price of opus but that's decidedly not true. It burned through $40 + my entire allowance in a matter of a few minutes, and didn't even finish its task." A moderator (PuzzleheadedAir9047) responded: "You may want to check input and output tokens + tool calls. Only token usage determine the cost that gets charged." Old – Oymudmy

User EdmontonLAD confirmed: "Yes, Fable is incredibly expensive. Only for the rich. I've never once touched it and probably never will." Old – Oykvxgc

SWE-1.7 free status and context window limitations

A question thread (4 points, 14 comments) submitted July 26 by thestreamcode asked whether SWE-1.7 is free with the $20 plan. User cat_dev_null_sync (4 points) provided a detailed answer citing a Cognition email from July 22: "We're extending free access to SWE-1.6 and GLM 5.2 through August 15 at 11:59pm PT... We've also released SWE-1.7 Medium, a new thinking variant designed to address the biggest piece of feedback on SWE-1.7 so far: overthinking." Old – Ozwymy2

User findigga noted a limitation: "SWE 1.7 and GLM-5.2 are free until mid August but with limited context frames of ~200-260k instead if 1M." Old – P0Heaoo

User EdmontonLAD reported a positive experience with the latest update: "SWE 1.7 is WAY better than it was when they first released it by the way! Wayyyyyy better. Been using it like crazy the past week or so." Old – Ozxas1A

User fbms2 disagreed: "glm-5.2 is better if you are looking for free models. swe-1.7 is also free but, IMO, not very good." Old – P0S4Us2

Prompt cache optimization as a user survival strategy

User julilUliluj (17 points, 95% upvoted, 4 comments) shared a detailed guide on July 20 for extending quota via prompt cache management. Key technique: "Never prompt a Coding task on an expired cache. I have the strong conviction that every single agentic tool call on an expired cache seems to reload the entire conversation context from scratch (uncached)." The poster monitors a 5-minute idle timer and hits Stop with 30 seconds remaining to reset it, and sends a dummy prompt ("Say hi back, do nothing else") to rebuild the cache before issuing real instructions. Old – Prompt Cache Is The Biggest Lever I Found For

User ultrathink-art (2 points) added a deeper technical insight: "Caching only pays off if the prefix stays byte-identical, one changed token near the top (a timestamp, a reordered tool list, an updated file tree) invalidates everything after it and you silently pay full price again. Biggest win for me was moving all the volatile stuff (current task, open file) to the end of the context and keeping the big stable blocks pinned at the front." Old – Oysksuo

Kimi K3 reception: positive for debugging, questions on cost

User funckyfizz (16 points, 10 comments) announced Kimi K3's arrival on July 28. The thread drew interest from users asking when it would be added. User lygofast had asked 11 days earlier "When will Kimi k3 be added?" (5 points, 10 comments), reflecting community anticipation. Sources: Old – Kimi K3 Is Now In Devin Desktop , Old – When Will Kimi K3 Be Added

HackerNews: minimal engagement

The HN Algolia API returned no Cognition/Devin/Windsurf stories from July 2026 with meaningful engagement. The only July HN submission found was "Devin Desktop, Replacing Windsurf" (1 point, 0 comments, submitted July 2), linking to the original June blog post. Source: News – Item

Failed sources

The Reddit JSON endpoint (reddit.com/...json) returned HTTP 403. The old.reddit.com HTML pages loaded successfully for all threads cited above. No browser fallback was required.

Enterprise Readiness

Additional certifications: SOC 2 Type 2. Source: Windsurf – Enterprise

New in July: FedRAMP High In-Process status extended from Devin Desktop/CLI to the full platform including Devin Cloud. DOE Genesis Mission MOU signed. Devin Outposts adds a new deployment model for running agents on user-operated infrastructure with outbound-only connectivity. Sources: Cognition – Devin Fedramp High In Process , Cognition – Cognition Doe Genesis Mission , Windsurf – Introducing Devin Outposts

Terms explained:

• SCIM - a protocol for automatically provisioning and deprovisioning user accounts from a corporate directory (e.g., Okta, Azure AD) to a SaaS tool. Without SCIM, IT teams must manually create and remove accounts. Datatracker – Rfc7644
• IP indemnity - the provider covers your legal costs if their AI output infringes a third party's copyright.
• FedRAMP - the U.S. Federal Risk and Authorization Management Program, a government-wide program that standardizes security assessment and authorization for cloud products. "In-Process" means the platform is actively pursuing authorization but has not yet received the final ATO (Authority to Operate). "Authorized" means it has. Source: Cognition – Devin Fedramp High In Process

Transparency Gaps