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New AI model releases

Every model ArtificialWatch has seen go live, newest first, and the frontier models it is watching for next. A release date here is the day the model went live as ArtificialWatch verified it, not an announcement. Updated as models ship.

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This week

6 releases in the last 7 days.

• Sep 22Claude Opus 5.5 · Anthropicfrontier · $4 / $20 per 1M tokens · bench index 100
• Sep 21Grok 4.7 · xAIfrontier · $2 / $6 per 1M tokens · bench index 69.7
• Sep 21MiMo-V2.6 · Xiaomi
• Sep 20Step 5 Preview · StepFun
• Sep 18Ternary Bonsai 2 27B · PrismML
• Sep 17Pareto · Circuit & Chisel

Earlier in the last 30 days

25 releases since August 25, 2026, 19 of them before this week.

• Sep 11Atria Dawn · Shanghai AI Lablimited preview
• Sep 11Sakana Fugu · Sakana AI
• Sep 10DeepSeek V4.1 Flash · DeepSeek
• Sep 10GPT-Live-1 · OpenAI
• Sep 9Agnes 3.0 Flash · Sapiens AI
• Sep 8GPT-Image-2.5 · OpenAI
• Sep 8Nex-N2.5 · NEX AGI
• Sep 3GPT-6 Astra · OpenAIfrontier · $10 / $50 per 1M tokens · bench index 88.5
• Sep 3K2 Horizon · IFM
• Sep 2Gemini 3.8 Flash · Google$0.75 / $3.75 per 1M tokens
• Sep 2Muse Spark 1.3 · Meta$1.25 / $4.25 per 1M tokens
• Sep 1Fable 5.1 · Anthropicfrontier · $10 / $50 per 1M tokens · bench index 95
• Sep 1Mythos 5.1 · Anthropicfrontier
• Aug 31Mercury 2.5 · Inception
• Aug 28Hy4 · Tencentlimited preview
• Aug 26Gemini 3.5 Transcribe · Google
• Aug 26GLM-5.3 Flash · Zhipu AI$0.15 / $0.50 per 1M tokens
• Aug 26Qwen 3.8 Flash · Alibaba$0.15 / $0.47 per 1M tokens
• Aug 25Granite 4.2 · IBM

Coming next: frontier models

Not out yet. Odds are live Polymarket prices where a market exists: sentiment, not a promise. ArtificialWatch alerts the moment one answers on a public API.

• Gemini 4 · Google95% by Nov 30In post-training per DeepMind's Koray Kavukcuoglu (Sep 24), release 'as soon as possible', no date
• Grok 5 · xAI50% by Dec 31Rumored — xAI roadmap's 10T-param tier
• Kimi K4 · Moonshot7% by Dec 31Not announced — next generation after K3
• Next Claude Opus (5.6+ / 6) · Anthropic53% by Nov 30Unannounced — armed on the cadence the moment 5.5 shipped, not on a leak
• Composer 3 · CursorCursor's from-scratch model, trained on SpaceX's Colossus
• DeepSeek V5 · DeepSeekExpected
• Fable 5.2 · AnthropicUnannounced - armed on Anthropic's point-release cadence, not a leak
• Fable 6 · AnthropicNext Mythos-class
• Fable 6.1 · AnthropicFuture point release
• Gemini 3.5 Pro (gemdelta) · GoogleInternal id per an Aug 6 leak — not on the public arena board when checked
• Gemini Omni Pro · GoogleLeaked — expected to ship alongside Gemini 3.5 Pro
• GPT-5.6 Zinc / Magnesium · OpenAICodenames sighted disabled in DesignArena — Zinc rumored an upgraded Sol, Magnesium a Terra replacement
• GPT-6.5 · OpenAINot announced — no OpenAI word or date
• Grok 4.8 · xAIUnannounced — Musk: ~2.5T params on a new C++ stack, "a noticeable improvement" over 4.7 · single source, no id or date · cadence has been ~5-6 weeks
• Kimi K3.1 · MoonshotResearcher-confirmed for August, staying open-weight — that window has now closed, and no K3.1 id is in the catalogs we sweep
• Mythos 5.2 · AnthropicUnannounced - the Mythos-tier twin of the 5.2 hunt
• Mythos 6 · AnthropicFuture

ArtificialWatch watches 52 unreleased models in all. The full list is on the watchlist.

Earlier releases

How they compare: the LLM leaderboard, head-to-heads and API prices. To hear the minute the next one goes live, watch free.