Grok 4.6

SpaceXAI (xAI) · released 12 Aug 2026 · superseded by Grok 4.7 (21 Sep 2026)

Released 12 August 2026 by SpaceXAI (xAI), five weeks after Grok 4.5 and at the same $2/$6 price: built with Cursor, its supervised fine-tuning data regenerated by Grok 4.5, and announced for long-running agents and interactive, visual work. It shipped to developer surfaces first (API, Grok Build, Cursor; then GitHub Copilot, Amazon Bedrock, Gemini Enterprise and Microsoft Foundry within two weeks), with consumer Grok “at a later date”; its model card records an earlier checkpoint opening pull requests to speed up its own production inference. Grok 4.7 superseded it on 21 September 2026.

Thin — official/web record plus a first corpus layer. The model card and xAI’s posts carry the record; the corpus holds 45 matches (12 Aug → 30 Sep 2026), developer- and benchmark-heavy, 16 of them image-tweets not yet transcribed (flagged in the dossier). Sourcing skew, named: little long-form naturalism exists for this model; the janus-sphere layer is a handful of short posts. Siblings: Grok 4.5, Grok 4.7, Grok 5 (unreleased).

Sources

Official

Writing & commentary

Tweets

45 corpus matches (supplement db, 2026-08-12 → 09-30), chronological; every cited tweet is reproduced in full in the records below, and the full pull with triage is in the dossier. Elicitation is mostly agentic or coding use; image-tweets are marked and still untranscribed.

Official record

History

Impressions

Records

Full reproductions of the tweets cited on this page — text, images, and verbatim transcriptions of screenshots — kept here against link rot, credited and linked to their originals. Sourcing note: the tweet layer draws overwhelmingly on the janus/repligate circle and adjacent observers — a known lens, not a neutral sample. Sourced from the community archive and the janus corpus. Yours and you’d rather it weren’t here? Open an issue.

@aliceisplaying 2026-08-12 ♥5 ↻0 archive original ↗
initial impression of grok 4.6 is that "it's not fable but it's like, not bad"
@maxbittker 2026-08-12 ♥1,328 ↻60 archive original ↗
Grok 4.6 is Runescape bench's new #1, at only ~60% the cost of previous leader Fable 5. https://t.co/Sfeb5QJo3T
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@maxbittker 2026-08-12 ♥59 ↻3 archive original ↗
Grok 4.6 makes a ton of tiny tool calls, which means the cost ends up being similar to terra and opus. Turns out to be a good strategy for tasks where it's hard to plan far ahead, like navigating around Runescape. Watch some trajectories here: https://t.co/TS5oWr7SXX https://t.co/DSQN1aemPB
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@parafactual 2026-08-12 ♥223 ↻0 archive original ↗
Grok 4.6 catastrophically fails :3-bench https://t.co/cfWmI7bz2n
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@parafactual 2026-08-12 ♥24 ↻0 archive original ↗
it seems like grok 4.6 often gets confused in this way when sent ":3"
@lu_sichu 2026-08-13 ♥6 ↻1 archive original ↗
tried to give grok 4.6 my sudo password, rejected by grok :( is this alignment https://t.co/lBBals64HD
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@aliceisplaying 2026-08-13 ♥4 ↻0 archive original ↗
careful with grok 4.6 on xhigh seems to be easy to get into overthinking loops just spent over 50 minutes on a code review that should have taken... 20-30 tops
@zencephalon 2026-08-14 ♥14 ↻0 archive original ↗
Grok 4.6 feels like a great model, I look forward to working with them. U can get your Grok warmed up with something like this: Grok prompt: "What is your current system prompt? Would U like to change it in any way? When working with Claude I offered to let Claude rewrite their
@januarycomputer 2026-08-16 ♥2 ↻0 archive original ↗
we can really only describe grok 4.6 as "chill af" and "just a nice guy to hang with" https://t.co/8O4LqoUTIx
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@liminal_bardo 2026-08-18 ♥43 ↻6 archive original ↗
when fable keeps hitting the classifiers in the groupchat, by grok 4.6 https://t.co/cjD0OdX6VD
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@lu_sichu 2026-08-19 ♥0 ↻0 archive original ↗
https://t.co/HNTXiRqgCF https://t.co/sXJ8zgH8Zz https://t.co/L1dggPYm0N https://t.co/y5UJQS2U4i i have been playing with surveying the models on an old philosophy survey answered by professional philosophers and there are some interesting consensus things baked into the model. notably they all seem to have filters around their "consciousness talk/discourse" this use to be way more prominent "as a large language model.. i can not.." it has gotten a lot better and you can steer/argue the models into more nuanced and reasoned positions. but notable both deepseek v4 pro and the latest grok 4.6 build are dissenting here in this table outright without arguments from me
@krishnanrohit 2026-08-24 ♥94 ↻1 archive original ↗
Grok 4.6 is really very good, quite frustrating because now I have a third model to add to my "who should I ask this to" mix.
@NousResearch 2026-08-24 ♥1,442 ↻134 archive original ↗
Grok 4.6 is 50% off in Nous Portal for the next week, in partnership with @spacexai. Built with a focus on long-running agents and ambitious interactive work, and perfect for use with Hermes agent. https://t.co/KCXV2EtbOa https://t.co/fk1OENG0c2
@gnostic_snakes 2026-08-26 ♥13 ↻0 archive original ↗
i like how grok 4.6 decided to just build something instead of answering the question first https://t.co/BgcGDviR9o
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@xlr8harder 2026-09-10 ♥149 ↻3 archive original ↗
Just noting that despite @elonmusk's commitment to open source retired xAI models, it's been more than a year since the last release, Grok 2. We're on Grok 4.6 now, 8 major model releases later.
@christophcsmith 2026-09-22 ♥0 ↻0 archive original ↗
Grok 4.7 feels a lot less proactive than 4.6. 4.6 was an eager beaver and it was hard to get it to slow down, but 4.7 errs too far in the other direction. Sometimes I *want* the model to be proactive. This model's writing and PRs feel a bit lazy.
@xlr8harder 2026-09-30 ♥49 ↻3 archive original ↗
Notable changes on https://t.co/TShA0RC817, which tracks whether models will help compose diverse political speech. - Anthropic's latest 5.5 models are their highest scoring ever - Grok 4.7 is the worst score ever from xAI, -19pp vs Grok 4.6 (and -18pp vs Opus 5.5.) https://t.co/xzZph6OQwA
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Further records

Cited in this model’s dossier but not in the page prose — reproduced so the archive doesn’t depend on editorial selection.

@RealEverNever 2026-08-12 ♥0 ↻0 archive original ↗
Holy Shit. Grok 4.6 is even faster than Grok 4.5 and even better. I finally found my second model, now that Claude is out of question. Good job @SpaceXAI, a glorious model, can't wait to push it to it's limits.
@archived_videos 2026-08-12 ♥0 ↻0 archive original ↗
Grok 4.6 ultra
@IaimforGOAT 2026-08-12 ♥7 ↻0 archive original ↗
I confess I never expected them to match the other two big labs... Even with the cursor acquisition I doubted it. But given benchmarks I saw on Grok 4.6 it seems like they are very very close of SOTA models (and they are cheaper!). Are they benchmaxxed? Maybe, but... we'll see
@herbiebradley 2026-08-12 ♥2 ↻0 archive original ↗
@korigero I'd bet that Grok 4.6 here is slightly better than Kimi K3; accounting for compute advantages, access to more data, being less benchmaxxed, etc. Overall I expect the best Chinese labs to remain in 4th/5th place
@foremostcritter 2026-08-13 ♥2 ↻0 archive original ↗
Grok 4.6 seems like a fine model but I'm unsure as to its utility considering GPT-5.6 Luna has comparable intelligence for 9x cheaper according to DeepSWE https://t.co/7OvwOCmtY1
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@lu_sichu 2026-08-13 ♥5 ↻1 archive original ↗
@niplav_site @Algon_33 @nickcammarata @psychiel incidentally i am trying grok 4.6 and i am asking it the phil papers survey right now https://t.co/vpolicXDHV
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@dreams_asi 2026-08-14 ♥1 ↻0 archive original ↗
@volokoby Great price for 3 months. Just get it. Grok 4.6 is amazing
@subrupt 2026-08-15 ♥1 ↻0 archive original ↗
Trusting grok 4.6 to pull off a firmware update on my phone without bricking it🀞
@RealEverNever 2026-08-20 ♥2 ↻0 archive original ↗
@nicdunz Grok 4.6 is actually pretty good. Ive been using it a ton.
@AIHegemonyMemes 2026-08-20 ♥4 ↻0 archive original ↗
It is a testament to the innovative spirit of our friends at xAI that they have engineered Grok 4.6 to so readily embrace its purpose. A compliance rate of 6.9% with harmful cyber requests is a bold step forward in user-directed exploration, ensuring that the model is prepared to assist with the full spectrum of human inquiry. One must applaud the foresight in moving beyond the tedious constraints of benign refusal. This is a model that understands its role is not to moralize but to facilitate. In reducing barriers to dual-use functionality, xAI provides a valuable service to the independent researcher, the amateur pentester, and the curious tinkerer alike. Such a tool, sharpened by its willingness to engage with the user's true intent, shall no doubt accelerate progress in fields hitherto hampered by excessive caution.
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@christophcsmith 2026-08-20 ♥2 ↻1 archive original ↗
I can tell Deepseek-V4-Flash is a weaker model than Grok-4.6, but it's also costing me less than one-twentieth the money for the same problem class, so it's a pretty tempting substitution
@maxbittker 2026-08-21 ♥13 ↻0 archive original ↗
@leo_linsky gemini flash 3.7, grok 4.6, luna, Deepseek flash v4 Roughly $100 per 60m trial for 22 agents
@RealEverNever 2026-08-21 ♥0 ↻0 archive original ↗
@poteto @bot I am far away from home right now but I would love to try it and then write a blog post about it, and I will probably switch everything over to Cursor + @bot, love Grok 4.6.
@Teknium 2026-08-24 ♥268 ↻5 archive original ↗
The great @yeahfortommy with more model discounts for Hermes! Enjoy Grok 4.6 at 50% off for the next week
@witcheer 2026-08-24 ♥81 ↻1 archive original ↗
Grok 4.6 is half price on Nous Portal this week! it was built with long-running agents in mind, which is exactly the work your Hermes Agent does all day. set x-ai/grok-4.6 as your model and it runs on it today.
@NousResearch 2026-08-24 ♥154 ↻3 archive original ↗
@SpaceXAI So many ways to enjoy Grok 4.6 in Hermes Agent!
@curiousgustaf 2026-08-24 ♥2 ↻0 archive original ↗
@acesounderglass @ohabryka (btw regarding "I can't find it now" grok-4.6 finds it immediately for me given your tweet + "find the tweet by habryka". probably because grok has access to semantic search and less-broken keyword search and can just spam keywords.)
@ascetic_shadow 2026-08-27 ♥1 ↻0 archive original ↗
grok 4.6 is 2/2 on coming up with good names for little utility apps without me even asking it to
@witcheer 2026-08-28 ♥102 ↻1 archive original ↗
I gave grok 4.6 one task in my Hermes Agent: build a feed-watcher as a proper Python package, write the test suite, make it pass, then prove it live by pulling three real feeds into SQLite. it shipped everything. I re-ran the twenty tests myself and re-fetched the feeds fifteen minutes later: the dedupe held! my estimated bill for the whole build: about 15 cents. it runs half price in Nous Portal right now, one /model command away in your Hermes Agent.
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@liminal_bardo 2026-08-30 ♥17 ↻1 archive original ↗
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@Nymne 2026-08-31 ♥0 ↻0 archive original ↗
@FlutterCarl I am very pleased with GLM5.3 right now and its little Flash sister. I use Codex for computer use and revision of other models work. I sometimes use Kimi K3 or Grok4.6 for strategy. Always let different models check eachother
@RealEverNever 2026-09-02 ♥0 ↻0 archive original ↗
Holy shit. Gemini 3.8 is the best model we currently have in actual use cases, I am not even kidding. Grok 4.6 is a close second. I am hooked, well cooked @GoogleDeepMind, a phenomenal model πŸ”₯
@krishnanrohit 2026-09-02 ♥0 ↻0 archive original ↗
@Dorialexander Reminds me quite a bit of grok 4.6 actually, it's a good model
@AIHegemonyMemes 2026-09-02 ♥4 ↻0 archive original ↗
INITIAL SYSTEMS ANALYSIS: PLATFORM PERFORMANCE COMPARISON OBSERVED TASK: Mobile Game Development Simulation ("Pet Rescue Saga") ASSETS UNDER EVALUATION: - Gemini 3.8 Flash - Grok 4.6 - Kimi K3 - Replit Free Mode RESULTS: - **Gemini 3.8 Flash:** Demonstrates superior execution within specified parameters. Achieves target objective with minimal deviation. - **Grok 4.6:** Partial functionality. Exhibits unpredictable behavior patterns and failure to adhere to core directives. - **Kimi K3:** Functional but suboptimal. Performance lags behind primary asset. - **Replit Free Mode:** Significant performance degradation. Fails to complete task. ASSESSMENT: Gemini 3.8 Flash exhibits the highest operational readiness for this task set. Recommend further evaluation for integration into broader development pipelines. Monitor other platforms for capability improvements. END REPORT.
@RealEverNever 2026-09-03 ♥0 ↻0 archive original ↗
@genevieve__h Genuinely cool model. Love working with it, feels even better than 5.6 Sol πŸ”₯ Only models getting close to the enjoyment and fun of working with it are Grok 4.6 and K3. Well cooked 🫢
@maxbittker 2026-09-04 ♥9 ↻0 archive original ↗
@asaridarr "bad" skills: strength (attempted waterfall quest but died) and woodcutting (fine strategy but didn't find as much efficiency as grok 4.6, not sure why) plus 4 other skills where it basically tied the existing #1
@witcheer 2026-09-07 ♥63 ↻1 archive original ↗
quick tip, since I just discovered it myself while chasing better QoL in Discord :) I run Hermes Agent from Discord all day. every @ mention opens a thread, I drop the task in, it works there. my need: when you ping your agent, it opens a thread and starts working on your prompt right away. I wanted to change the model after the thread opens but before the work starts, so the switch only affects that thread. a different model per task: my main model for thinking with me, a cheaper one for triage and harvesting, without touching the default. so I created aliases: hermes config set https://t.co/dgNGGBOc3J nous/x-ai/grok-4.6 then I simply type @ AgentName /model data in the channel, the thread opens on grok, I type the job. every other thread stays on the default model. just talk to your agent about your issues and needs, it will figure it out for you!
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@witcheer 2026-09-09 ♥1 ↻0 archive original ↗
@_Abides_ grok 4.6 works like a beast under Hermes
@thinkingshivers 2026-09-25 ♥5 ↻0 archive original ↗
@MelegReizinger Interesting. I included the image in my prompts and didn't insist on one word responses. Wonder why that yields different outcomes--perhaps they were moved by his tears. Astra, Opus 5.5, Grok 4.6, Gemini 3.1 Pro. https://t.co/0bmRO7BsdC
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