✳ releases · next Grok

When is the next Grok model coming out?

No date is confirmed. Polymarket prices Next Grok (4.8 or later) at 61% by Nov 30 and 83% by Dec 7. The latest Grok release was Grok Voice 3.0 on Oct 14, 2026.

Hear when the next Grok model drops, free →

What we're armed for

Every unreleased Grok model on the board, swept every 60 seconds. Odds are live Polymarket prices where a market exists: sentiment, not a promise.

• Grok 4.861% by Nov 30 · 83% by Dec 7 · market: Next Grok (4.8 or later)
  Unannounced, no date — xAI's own public grok-build repo lists grok-4.8 in its model picker and router tests (read Sep 29; the tests use 500K and 256K context windows) · Nov 7: 47 days since Grok 4.7, still no grok-4.8 in xAI's API release notes (newest entry Nov 2, an image-model retirement) or in OpenRouter's catalog (newest xAI id grok-4.7), and xAI's public grok-build repo, where the 4.8 picker entry appeared, has had no push since Sep 29 · Musk's posts about Grok since Nov 4 cover Grok Bot features and give no 4.8 date (his X posts, read Nov 7) · the Polymarket market last traded at 64%, with the book at 59-61% (Nov 7) · Nov 10 09:35 UTC: Musk on X says pre-training is done, the SFT data needed a lot of cleanup, 4.8 is now in RL with evals starting to climb, and xAI will do a soft rollout to Bot users later this week; he says xAI dropped JAX/SGLang and rewrote its RL and inference stack in C/C++ (his X post) · at 10:51 UTC OpenRouter's newest xAI id is still grok-4.7 · Polymarket: next Grok by Nov 30 at 63%, by Dec 7 at 80% (Nov 10)

  Earlier reports (4)

  a Cursor server list reportedly carries grok-4.8-high, -high-fast and -xhigh-fast (single source) · Musk: ~2.5T params on a new C++ stack · Oct 7: Musk says most Grok Bot requests "will be handled by a lightning-fast version of Grok 4.8 when that comes out" (his X post) · Oct 30: Musk: "I know it's taken longer than expected, but Grok 4.8 will not be a disappointment", adding that xAI is not optimizing for benchmarks (his X post; still no date) · Nov 4: 44 days since Grok 4.7 shipped on Sep 21, already longer than the 34 days from 4.5 to 4.6 and the 40 from 4.6 to 4.7 · xAI's API release notes (newest entry Nov 2) and OpenRouter's catalog list no grok-4.8 · Polymarket's "next Grok (4.8+) by Nov 30" market: 65% (Nov 4)
• Grok 548% by Mar 31
  No date · Musk on record: 6T parameters (Nov 17, 2025); on Sep 14 he put Grok 4.8 and 4.9 ahead of it · Nov 10 10:22 UTC: asked whether Grok matches Claude, Musk replied that it is not as good and called Opus 5.5 a masterpiece, adding that Grok 5 should exceed Opus 5.5, maybe in 2 or 3 months (his X reply) · still no id, price or date from xAI
• Grok 4.9
  Unannounced — Musk (Sep 14) put 4.8 and 4.9 ahead of Grok 5 · no id, price or date · Sep 14: Musk on X: 'Grok 4.9 is probably Astra/Fable class', with Grok 4.8 'a noticeable improvement' on 4.7 (his post as quoted by TeslaNorth and Wccftech) · Nov 4: Grok 4.8 itself has not shipped, 44 days after Grok 4.7; no grok-4.8 or grok-4.9 id in OpenRouter's catalog; Polymarket's 'next Grok (4.8+) by Nov 30' market last traded at 67% · Nov 7: Grok 4.8 is still unshipped, 47 days after 4.7, and that market last traded at 64%
• Grok 4.4
  Skipped · xAI went from Grok 4.3 (May 1) to 4.5 (Jul 9); its model list has no 4.4 and tops out at 4.7
• Next Grok Voice (3.1+ / 4)
  No date · Grok Voice 3.0 shipped Oct 14, 2.5 months after Think Fast 2.0 (Jul 29)

Latest Grok releases

• Grok Voice 3.0Oct 14, 2026
• Grok 4.7Sep 21, 2026
• Grok 4.6Aug 12, 2026
• Grok Voice Think Fast 2.0Jul 29, 2026
• Grok 4.5Jul 9, 2026
• Grok 4.20Mar 10, 2026

Grok: quick answers

Other labs: Claude · OpenAI · Gemini · DeepSeek · Kimi · Qwen · Meta · Mistral · MiniMax · GLM · every release · every AI market