Windsurf

Key Terms

• Devin - Cognition's autonomous AI software engineer, now the sole brand across the former Windsurf product: Devin Desktop (IDE), Devin CLI, Devin Cloud (cloud agents), Devin API, Ask Devin. The pricing page now reads "Devin Plans and Pricing" with no Windsurf branding. Source: Windsurf – Pricing
• SWE-1.7 - Cognition's proprietary coding model (trained from Kimi K2.7 base), served via Cerebras at 1000 TPS; launched July 8. Source: Cognition – Swe 1 7
• Quota - plan usage allowance refreshing daily/weekly; described only as "Light" (Free), "Increased" (Pro), and "Significantly higher" (Max) with no published token counts. Source: Windsurf – Pricing
• Fusion - hybrid-model harness routing between a frontier lead model and cheaper sidekick agents; preview since June, no GA date. Source: Cognition – Devin Fusion
• FrontierCode 1.1 - Cognition's coding benchmark (Main and Extended subsets; Diamond deprecated July). Source: Cognition – Frontier Code 1.1

Latest Changes

Changes since the 2026-07 report.

July watch items verified:

• SWE-1.7/GLM 5.2 free period ending Aug 8-15: partial (extension became standing). The promotion was never converted to paid pricing. The pricing page now lists "Free use of SWE 1.7 and leading open source models" as a standing Pro-plan feature with no end date, ending the rolling-extension ambiguity but still with no published post-free price. Sources: Windsurf – Pricing , Old – Ozwymy2
• Devin Fusion GA: still-pending. No August update; Fusion remains a Devin Cloud preview. Source: Cognition – Devin Fusion
• Quota transparency: failed (third consecutive month). Quotas remain "Light / Increased / Significantly higher" with no numbers. Source: Windsurf – Pricing
• Community backlash wave: subsided (no new August wave found). No significant new HN or Reddit threads on Devin quota blocking were found in August, after July's 45-point r/windsurf thread.

New August changes:

• Rebrand completed: the pricing surface is now fully Devin-branded ("Devin Plans and Pricing"), completing the Windsurf-to-Devin transition announced with Devin Desktop in June. Source: Windsurf – Pricing
• New plan: Max at $200/mo ("NEW" badge) with "significantly higher quotas," sitting between Pro ($20) and Teams. Source: Windsurf – Pricing
• No new engineering posts: Cognition's blog published nothing between July 28 (LTM partnership) and September 1, its quietest month since early 2025. Source: Cognition
• Model adoption signal (Sep 1, post-period): Cognition CPO Walden Yan, in Anthropic's Fable 5.1 launch materials: "We're moving our Opus 5 traffic in Devin to Claude Fable 5.1 on launch day... with the new cache read pricing a Fable-class model is finally economical for the workloads we'd kept on Opus, starting with code review." Source: Anthropic – Claude Fable And Mythos 5 1

Plans

Concurrent session limits: up to 10 (Pro/Max/Teams per user), Unlimited (Enterprise). Overage billed at API pricing. Source: Windsurf – Pricing

API Pricing

No per-token API price list is published for SWE-1.7 or plan usage; extra usage is "consumed at API pricing" without a public rate table. The Devin API is gated to Teams/Enterprise without public pricing. Third-party models inside Devin bill against the quota at undisclosed per-message rates. Source: Windsurf – Pricing

Model Performance / Benchmarks

No new benchmark publications in August. Standing July figures: SWE-1.7 scores 42.3% FrontierCode 1.1 Main and 81.5% Terminal-Bench 2.1; Fable 5 remains #1 on FrontierCode 1.1 Extended. Sources: Cognition – Swe 1 7 , Cognition – Frontier Code 1.1

Latest News

Quiet Month, Completed Rebrand (August 2026)

No research, model, or feature announcements were published in August. The pricing surface dropped all Windsurf branding in favor of Devin, and a $200/mo Max plan was added for power users. Source: Windsurf – Pricing

Cognition Commits to Fable 5.1 for Devin (Sep 1, 2026, post-period)

In Anthropic's launch post, Cognition stated it is moving Opus 5 traffic in Devin to Fable 5.1 on launch day, citing matched-or-better performance at lower cost per task and the new $0.25/MTok cache reads. Source: Anthropic – Claude Fable And Mythos 5 1

Community Signals

August was quiet on community channels: no significant new HN threads and no new high-engagement Reddit backlash comparable to July's "Windsurf/Devin, this is getting ridiculous" (45 points, 39 comments). Old – Windsurfdevin This Is Getting Ridiculous . The last major community touchpoint remains the free-SWE-1.7 dependency documented in July (users staying "only for free GLM 5.2 and SWE-1.7 access"). Old – Ozvzsxk

Enterprise Readiness

Transparency Gaps