Key Terms
- Grok 4.6 - xAI's new flagship (August; in GitHub Copilot August 14), recommended by docs for both code and chat. 500K context, knowledge cutoff February 1, 2026, $2/$6 per MTok under 200K prompt tokens ($4/$12 at or above), cached input $0.50/$1.00. Source: xAI – Models
- Grok Build CLI - xAI's terminal coding agent (Apache 2.0, open-sourced July 15); remains the recommended harness for Grok coding workflows. Source: GitHub – Grok Build
- Long-context pricing - requests whose prompt reaches 200K tokens are billed at the higher rate for all tokens in the request (not just the excess). Source: xAI – Models
Latest Changes
Changes since the 2026-07 report.
July watch items verified:
- Grok Build exfiltration follow-up (security advisory, retention disclosure): still-pending. No security advisory, data-deletion confirmation, or retention timeline was found in August. The July incident (CLI uploading full git repos including .env files to a GCS bucket) remains unresolved from a disclosure standpoint. Source: Gist – Dc9A40Bc26120F4540E4E09B75Ffb547
- Grok 4.7: still-pending (window is early-mid September per Musk). No model ID exists at docs.x.ai as of September 2. Source: Aitoolsrecap – Ai News August 31 2026
New August changes:
- New flagship: Grok 4.6. Listed as "the most intelligent and fastest model we've built" and the docs' recommended model for code and chat. Pricing mirrors Grok 4.5's structure ($2/$6 under 200K; $4/$12 above) but with higher cached-input rates ($0.50 vs $0.30 short-context). Sources: xAI – Models , GitHub – 2026 08 14 Grok 4 6 Is Now Available In Github Copilot
- Distribution: Grok 4.6 added to GitHub Copilot (August 14), joining Grok 4.5. Source: GitHub – 2026 08 14 Grok 4 6 Is Now Available In Github Copilot
Plans
xAI is API-first; consumer Grok subscriptions exist but publish no coding-agent usage limits. Source: xAI – Models
API Pricing
| Model | Context | Input $/MTok (<200K / >=200K) | Cached input | Output $/MTok (<200K / >=200K) |
|---|---|---|---|---|
| grok-4.6 | 500K | $2.00 / $4.00 | $0.50 / $1.00 | $6.00 / $12.00 |
| grok-4.5 | 500K | $2.00 / $4.00 | $0.30 / $0.60 | $6.00 / $12.00 |
| grok-4.3 | 1M | $1.25 / $2.50 | $0.20 / $0.40 | $2.50 / $5.00 |
| grok-4.20-0309 (reasoning/non-reasoning) | 1M | $1.25 / $2.50 | $0.20 / $0.40 | $2.50 / $5.00 |
| grok-build-0.1 | 256K | $1.00 / $2.00 | $0.20 / $0.40 | $2.00 / $4.00 |
Other: grok-imagine-image-2.0 $0.04/image; grok-imagine-video-1.5 $0.08/sec; voice $0.08/min (2.0). Source: xAI – Models
Model Performance / Benchmarks
No new xAI-published benchmark tables for Grok 4.6 were found on the models index; standing July figures for Grok 4.5: Artificial Analysis Intelligence Index 54, TerminalBench v2.1 83.3%, SWE-Bench Pro 64.7%. Source: xAI – Grok 4 5
Latest News
Grok 4.6 Ships Quietly (August 2026)
Grok 4.6 became the docs' recommended code and chat model in August and entered GitHub Copilot on August 14, without a flagship launch post comparable to Grok 4.5's July announcement. Grok 4.5 remains available at identical headline pricing. Sources: xAI – Models , GitHub – 2026 08 14 Grok 4 6 Is Now Available In Github Copilot
Grok 4.7 Window Approaches
Musk's stated window for Grok 4.7 is early-to-mid September; no model ID or docs page exists yet. Source: Aitoolsrecap – Ai News August 31 2026
Community Signals
No significant new HN threads on Grok 4.6 were found in August. The Grok Build exfiltration thread (539 points, July) remains the reference community discussion, with no follow-up disclosure from xAI. News – Item
Enterprise Readiness
| Feature | Available? | Details |
|---|---|---|
| SSO (SAML/OIDC) | No | API keys only; not documented. |
| SCIM | No | Not documented. |
| Audit logs | No | Not documented. |
| IP indemnity | No | Not documented (unchanged). |
| Data residency | No | Not documented. |
| HIPAA | No | Not advertised. |
| Air-gapped / on-prem | No | Not offered. |
| SLA | No | Not published. |
| Admin controls (RBAC) | No | Not documented. |
| Batch API | Partial | Available for some models only. Source: xAI – Models |
Transparency Gaps
| Gap | Details | Severity |
|---|---|---|
| Exfiltration remediation | No advisory, deletion proof, or CLI audit trail published two months after the Grok Build upload scandal. | High |
| Grok 4.6 benchmarks | No published scores accompany the new flagship's quiet rollout. | Medium |
| Consumer coding limits | No usage limits published for Grok subscriptions used with coding agents. | Medium |
| Grok 4.7 timing | "Early-mid September" per Musk, with no official date. | Low |