xAI Releases Grok 4.7, Its Most Powerful Model for Coding and Knowledge Work
The September 21, 2026 release builds on a larger base than Grok 4.6, with extended training on harder multi-hour tasks and better self-verification — at the same 500K context and the same headline price.
2026-09-21 · by Moe Ameen
Published 2026-09-21 · Updated
Short answer
xAI released Grok 4.7 on September 21, 2026 as its most powerful model for coding and knowledge work. It sits on a larger base than Grok 4.6, keeps a 500K-token context window, and costs $2 per million input tokens and $6 per million output tokens, double above 200K tokens. xAI reports gains on every benchmark it published, including Terminal-Bench 4.0 rising from 20.3% to 37.6%. It writes text but makes no media.
Key takeaways
- Grok 4.7 launched September 21, 2026 as xAI's top model for coding and knowledge work.
- API pricing is $2 input and $6 output per million tokens, and the rate doubles above 200K tokens.
- It keeps a 500K-token context window and accepts text and image input.
- xAI's own benchmarks show gains over 4.6, such as CursorBench 4.0 rising from 40.4% to 46.3%.
- It drafts and reasons. Images, video and publishing still need other tools.
What is Grok 4.7 and what changed from Grok 4.6?
xAI released Grok 4.7 on September 21, 2026, calling it its most powerful model for coding and knowledge work — one it frames as roughly twice as fast at half the price of comparable models. It builds on a larger base model than Grok 4.6 (Decrypt reported the new base at 2.1 trillion parameters, up from 4.6's 1.5 trillion), trained with extended reinforcement learning on harder, multi-hour tasks. xAI says the model works longer on difficult problems, checks its own work more carefully, and manages long context better than 4.6, and that it was trained to natively understand the Grok Bot harness for conversational and general knowledge-work tasks.
On xAI's launch benchmarks, 4.7 improves over 4.6 across coding, agentic, and knowledge evals: CursorBench 4.0 rises to 46.3% (from 40.4%), DeepSWE v1.1 to 71.0% at high effort (from 65.2%), Terminal-Bench 4.0 to 37.6% (from 20.3%), EEBench to 64.0% (from 53.0%), HealthBench Professional to 56.7% (from 48.5%), and the Harvey Legal Agent benchmark to 19.6% (from 15.8%). These are xAI's own figures.
Grok 4.7 keeps the 500,000-token context window and the headline API pricing from 4.6 — $2 per million input tokens, $0.50 per million cached input, and $6 per million output — with a faster variant at roughly double the speed and double the price. As with 4.6, that headline rate doubles once a single request crosses 200,000 tokens ($4 input, $12 output). It ships with what xAI describes as its best-calibrated safeguards to date, and is available through the xAI API, Grok Build, Cursor, and third-party coding harnesses and cloud platforms.
Why does Grok 4.7 matter for creators?
- Faster, cheaper frontier reasoning is now the norm: 4.7 holds the same $2/$6 base as 4.6 while posting gains across xAI's coding and knowledge-work benchmarks.
- Better self-verification and long-context handling mean cleaner first drafts from big source material — fewer factual fixes before the text is usable.
- The release leans into coding and knowledge work, not media — a raw model still generates no images, video, captions, or posts.
- Cheaper drafting tempts you to produce more raw text, which only widens the gap between a draft and a finished, scheduled post.
- For creators, 4.7 is a sharper drafting and research brain; the work of turning that into published content across platforms is unchanged.
How can creators use Grok 4.7 output with Kompozy?
The move on a release like this is to put the new model where it's strongest and hand off the instant it stops. Grok 4.7's gains are in reasoning over hard, long problems and checking its own work — so it's a better place than ever to digest a dense source (a quarterly report, a long transcript, a research thread) and draft from it. What it still won't do is make or ship any of it: no avatar video, no carousel, no captions, no schedule, no publishing.
That's the handoff Kompozy is built for, and you can act on it the same day the model ships. Take Grok 4.7's draft or research summary and drop it into Kompozy as a source. Kompozy generates the finished formats it implies — a HeyGen persona short with burned-in captions, a brand-exact HyperFrames carousel, quote cards, a blog draft, a newsletter — all held to your voice through a Persona Brief, then schedules and autopilots the set across eight social platforms plus blog and email from one queue. You don't wire Grok into Kompozy; it runs its own generation on managed Claude and OpenAI models, so 4.7's output goes in as raw material and the engine ships it. Even covering this launch is a use case: draft the explainer in Grok, then produce and publish the whole content set in Kompozy.
What are the quick takeaways on Grok 4.7?
- Grok 4.7 launched September 21, 2026 as xAI's most powerful coding and knowledge-work model.
- Built on a larger base than 4.6 (reported at 2.1T parameters), with extended RL on multi-hour tasks and better self-verification.
- Same 500K context and same $2/$6 headline price; gains across xAI's launch benchmarks (as reported by xAI).
- It reasons and codes but generates no media and publishes nothing — pair it with a content engine to ship.
What does this look like in Kompozy?
This quote graphic came out of the Kompozy workspace. A strong line from a Grok-drafted script can end up as a post like this.
Who is this for, and who should skip it?
Best for:
- Developers and teams who want a cheaper frontier model for coding and long documents
- Creators who want stronger research summaries and first drafts from dense sources
- Anyone already using Grok through Cursor or the xAI API
Not ideal for:
- Creators who need images, video or audio, since Grok 4.7 returns text only
- Buyers who want independent benchmark results, since the published numbers are xAI's own
- Workloads that regularly pass 200K tokens per request, where the rate doubles
Frequently asked questions
What is Grok 4.7?
Grok 4.7 is xAI's flagship model, released September 21, 2026, positioned as its most powerful model for coding and knowledge work. It reads text and images and returns text, keeps a 500,000-token context window, and is built on a larger base than Grok 4.6 with extended training on harder, multi-hour tasks and better self-verification.
How much does Grok 4.7 cost?
Via the xAI API it is $2 per million input tokens, $0.50 per million cached input, and $6 per million output — the same headline rate as Grok 4.6. That rate doubles once a request crosses 200,000 tokens ($4 input, $12 output), and a faster variant runs at roughly double the speed for double the price.
What changed from Grok 4.6 to Grok 4.7?
A larger base model, extended reinforcement learning on harder multi-hour tasks, better self-checking and long-context handling, and native understanding of the Grok Bot harness. xAI reports gains across its coding, agentic, and knowledge-work benchmarks at the same 500K context and same price.
Can Grok 4.7 make social media content?
It drafts the text — scripts, captions, angle batches, research summaries — quickly and well, but it generates no images, video, or audio and publishes nothing. To turn its drafts into finished, scheduled posts you pair it with a content engine like Kompozy that produces the media and publishes across platforms.
How do we know this?
We checked every figure, date, quote and product claim on this page against the sources listed below on 2026-10-23, and removed or rewrote anything we could not confirm. Benchmarks and launch claims come from xAI's announcement, pricing and context from xAI's model docs, and the parameter counts from Decrypt. Kompozy plan and format details come from kompozy.io.
Sources
- xAI — Grok 4.7 (read 2026-10-23)
- xAI Docs — Models and pricing (read 2026-10-23)
- Decrypt — xAI launches Grok 4.7 (read 2026-10-23)
- Kompozy — Pricing and plans (read 2026-10-23)