Track major AI model releases in 2026 — release dates, what changed, and live coverage of new announcements from the leading AI companies.
The verified table and the live monitor serve different purposes. A model is added to the verified release list only after I can match it to a first-party announcement, documentation, release note, or another reliable source. The monitoring feed is only a discovery aid; an item appearing there is not the same as editorial verification.
I keep the two sections separate so a fresh headline cannot silently become a confirmed release. Dates refer to the public release or announcement described by the source, not the date this page happened to detect it.
Last updated: October 4, 2026. Newest releases listed first.
| Model | Maker | Released | Notable for |
|---|---|---|---|
| Claude Opus 5.5 | Anthropic | September 22, 2026 | First model in the new Opus 5.5 family, built for long-running agentic coding; matches the Mythos-class flagship on most tasks at meaningfully lower cost |
| GPT-6 Sol & Luna | OpenAI | September 22, 2026 | Cheaper, faster siblings to GPT-6 Astra; OpenAI cut API pricing roughly in half versus GPT-5.6 |
| Grok 4.7 | xAI | September 21, 2026 | New, larger base model, held at Grok 4.6's pricing |
| DeepSeek-V4.1-Flash | DeepSeek | September 10, 2026 | Open-weight update, weights released same day |
| GPT-6 Astra | OpenAI | September 3, 2026 | Flagship reasoning model, initially limited-access, since opened to all developers |
| Gemini 3.8 Flash | September 2, 2026 | Stable general availability; stronger at software engineering and agent workflows than 3.7 Flash | |
| Claude Fable 5.1 | Anthropic | September 1, 2026 | Mythos-class flagship, generally available on every platform from day one |
| Gemini 3.7 Flash | August 13, 2026 | Faster, lighter-weight variant with improved coding at lower cost | |
| DeepSeek-V4-Pro-0813 | DeepSeek | August 13, 2026 | Updated open-weight flagship, aggressive pricing |
| Grok 4.6 | xAI | August 12, 2026 | Successor to Grok 4.5, broader capability update |
| Claude Opus 5 | Anthropic | July 24, 2026 | New Opus-tier flagship, near top-tier capability at roughly half the price |
| GPT-5.6 (Sol/Terra/Luna family) | OpenAI | July 9, 2026 (limited preview from June 26) | Three durable tiers: Sol (flagship), Terra (balanced, about GPT-5.5-class at roughly half the cost) and Luna (fastest and cheapest). Public launch followed a limited preview for trusted partners |
| Claude Sonnet 5 | Anthropic | June 30, 2026 | Enterprise coding, general availability |
| Claude Fable 5 & Mythos 5 | Anthropic | June 9, 2026 | First Mythos-class models, above the Opus tier. Access was suspended on June 12 to comply with US export controls and restored on July 1 |
Dates and details reflect public reporting as of the "Last updated" date above and may be revised as new information emerges.
Checking for newly released AI models…
These are the official news or documentation pages of each company. Dates and details on this page are matched to announcements published there, so check the original announcement for the full picture.
Major providers now ship meaningful updates every few months, with smaller incremental updates even more frequently — the pace has accelerated notably compared to just a couple years ago.
Generally no — as covered in our Choosing Your First AI Tool lesson, constantly switching based on hype costs more in re-learning than most incremental gains are worth.
Check the provider's official blog or documentation for full release notes — this page tracks the headline releases, not exhaustive technical changelogs.