Grok 4.6
Back to the frontier, same $2/$6
xAI released Grok 4.6 on 2026-08-12: 500K context, official price $2 input / $0.50 cached / $6 output per 1M tokens below 200K prompt tokens, and $4 / $1 / $12 above. Grok 4.7 followed on 2026-09-21 at the same official rates. It targets long-running agents and visual/interactive first passes, in Cursor, Grok Build, the API and OpenRouter, with 2× included usage in the first week. QCode availability is as shown on /models.
Updated 2026-10-22
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- Billed per token — live rates on /models
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Highlights
AA Intelligence
Ties Sol; behind Opus 5 max 63 and Fable 5 max 62.
Input / output
Unchanged from 4.5. Cache hit rose $0.30 → $0.50. Fast variant is 2× price.
Context
Same as 4.5 — not 1M.
DeepSWE v1.1
Behind Sol 73% and Fable 70% on the official 4.6 table.
What 4.6 is
Grok 4.6 is a longer supplemental training run on top of 4.5 plus SFT data regenerated with 4.5 — not a fresh pre-train. xAI has published no parameter count for 4.6; the "2T" figure some early blogs used conflicts with later founder comments about 4.7, so this page does not state one. Grok 4.7 shipped on 2026-09-21; the official release notes list a 500K context and the same price tiers. The 4.6 specifications on this page still follow the 2026-08-12 release notes.
Why it is trending
The most-shared figure is Artificial Analysis' efficiency comparison: on Briefcase, Grok 4.6 takes about 53 turns and 0.5B input tokens against Opus 5's ~103 turns and 2.0B. Note the two Terminal-Bench numbers are not comparable — xAI's launch table uses TB v3.0 (26%), while Artificial Analysis cites TB v2.1 (88.4%).
Timeline
Grok 4.5 launch era.
Musk teases 4.6 then 4.7.
4.6 GA — a few days after the ~Aug 7 hint.
Confirmed vs caution
Confirmed
Launch post + eval table; AA article 2026-08-12; $2/$6; 500K; first-week 2× in Cursor/Build. Grok 4.7 shipped 2026-09-21 at the same official rates.
Caution / rumor
Three things get mixed up: xAI has not published a parameter count for 4.6, and the 2.1T figure circulating online comes from founder comments about 4.7; Terminal-Bench v3.0 and 2.1 are different scales and cannot share a column; and the fast variant costs 2×, it is not free speed.
How to choose
Pick 4.6
Long agents, visual apps, $2/$6 hedge vs Opus/Sol bills, Cursor/Build users.
Pick something else
Need 1M context, or max DeepSWE, or Claude/OpenAI-native stacks.
How to use it
console.x.ai / Cursor / x.ai/build. Model via /models.
On QCode
QCode does not currently carry the Grok family — there is no Grok model on /models. Not ready for a monthly plan? Pay-as-you-go Packs start at $4 for a one-time quota you use within 7 days; with an active Personal Plan you cannot buy a pack, so buy a booster pack when the plan quota is short. If you want an alternative in the same capability band, the catalogue lists claude-opus-5, gpt-5.6-sol, deepseek-v4-pro and kimi-k3.
FAQ
Is 4.6 out?
Yes. 2026-08-12.
Better than Opus 5?
AA 61 vs 63. Cheaper and fewer turns. Not a knockout.
Better than 4.5?
AA 56→61, much stronger long-agent story. Cache hit got more expensive.
Context 1M?
No. 500K.
Where is 4.7?
Released on 2026-09-21. xAI's release notes list Grok 4.7 with a 500K context and the same official rates as 4.6: $2 input / $0.50 cached / $6 output per 1M tokens below 200K prompt tokens, $4 / $1 / $12 above. QCode availability is as shown on /models.
TB 26% looks terrible?
That is Terminal-Bench v3.0 on the launch table. AA’s TB v2.1 is 88.4%. Different tests.
Sources
x.ai/news/grok-4-6; AA 2026-08-12 article.
Use the Grok that exists
4.6 and 4.7 are both released.
Related
Grok 5 release date: no official date yet (2026-11-05)
xAI has announced no Grok 5 release date: what the funding announcement says, the newest model Grok 4.7, Musk's roadmap post and media reports, each with its source, as of 2026-11-05.
Grok 4.7 tracker
Released 2026-09-21.
Grok 4.5 guide
Previous flagship page.
Crypto payment guide
Nine coins, 56 networks, zero platform fee for AI coding API credits.
Not affiliated with SpaceXAI / xAI.