AI model release sources
The pages behind each release date: provider announcements, changelogs, documentation, model repositories and listings.
659 releases114 providersData through Oct 20, 2026
Evidence behind each release date
A page appears here because at least one release cites it. Provider-issued pages (announcements, changelogs, documentation, reports) are the strongest evidence; for other releases we link the model repository, a platform listing or the aggregator record.
- Source pages
- 659
- Provider-issued
- 53
- Providers
- 114
By source type
53 pages from 18 providers
›OpenAI15 source pages · 15 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| GPT Audio 1.5 (developers.openai.com) ↗ | Docs | developers.openai.com | 1 | Apr 23, 2026 |
| GPT Live Transcribe (developers.openai.com) ↗ | Docs | developers.openai.com | 1 | Jul 28, 2026 |
| GPT Realtime 2.1 (developers.openai.com) ↗ | Docs | developers.openai.com | 1 | Jul 6, 2026 |
| GPT Realtime 2.1 Mini (developers.openai.com) ↗ | Docs | developers.openai.com | 1 | Jul 6, 2026 |
| GPT Transcribe (developers.openai.com) ↗ | Docs | developers.openai.com | 1 | Jul 28, 2026 |
| GPT-5.3 Instant (openai.com) ↗ | Announcement | openai.com | 1 | Mar 3, 2026 |
| GPT-5.3-Codex (openai.com) ↗ | Announcement | openai.com | 1 | Feb 5, 2026 |
| GPT-5.4 and GPT-5.4 Pro (openai.com) ↗ | Announcement | openai.com | 1 | Mar 5, 2026 |
| GPT-5.4 mini and nano (openai.com) ↗ | Announcement | openai.com | 1 | Mar 17, 2026 |
| GPT-5.5 and GPT-5.5 Pro (openai.com) ↗ | Announcement | openai.com | 1 | Apr 23, 2026 |
| GPT-6 Sol and GPT-6 Luna (openai.com) ↗ | Announcement | openai.com | 1 | Sep 22, 2026 |
| GPT-Live-1 in the API (openai.com) ↗ | Announcement | openai.com | 1 | Sep 10, 2026 |
| OpenAI GPT-5.6 ↗ | Announcement | openai.com | 1 | Jul 9, 2026 |
| OpenAI GPT-6 Astra model documentation ↗ | Docs | developers.openai.com | 1 | Sep 3, 2026 |
| OpenAI GPT-6.1 Sol launch post ↗ | Announcement | openai.com | 1 | Sep 29, 2026 |
›Anthropic10 source pages · 10 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Anthropic announcement ↗ | Announcement | anthropic.com | 1 | Apr 16, 2026 |
| Anthropic Claude Haiku 5.5 announcement ↗ | Announcement | anthropic.com | 1 | Oct 7, 2026 |
| Anthropic Claude Sonnet 5.5 announcement ↗ | Announcement | anthropic.com | 1 | Sep 28, 2026 |
| Anthropic system card ↗ | Report / card | www-cdn.anthropic.com | 1 | Feb 1, 2026 |
| Claude Fable 5 and Claude Mythos 5 (anthropic.com) ↗ | Announcement | anthropic.com | 1 | Jun 9, 2026 |
| Claude Fable 5.1 and Claude Mythos 5.1 (anthropic.com) ↗ | Announcement | anthropic.com | 1 | Sep 1, 2026 |
| Claude Opus 4.8 (anthropic.com) ↗ | Announcement | anthropic.com | 1 | May 28, 2026 |
| Claude Opus 5 (anthropic.com) ↗ | Announcement | anthropic.com | 1 | Jul 24, 2026 |
| Claude Opus 5.5 (anthropic.com) ↗ | Announcement | anthropic.com | 1 | Sep 22, 2026 |
| Claude Sonnet 5 (anthropic.com) ↗ | Announcement | anthropic.com | 1 | Jun 30, 2026 |
›Google10 source pages · 10 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Gemini 3.1 Flash TTS Preview (ai.google.dev) ↗ | Changelog | ai.google.dev | 1 | Apr 15, 2026 |
| Gemini 3.1 Pro (blog.google) ↗ | Announcement | blog.google | 1 | Feb 19, 2026 |
| Gemini 3.5 Transcribe (ai.google.dev) ↗ | Docs | ai.google.dev | 1 | Aug 26, 2026 |
| Gemini 3.6 Flash, Gemini 3.5 Flash-Lite, and Gemini 3.5 Flash Cyber (blog.google) ↗ | Announcement | blog.google | 1 | Jul 21, 2026 |
| Gemini 3.8 Flash and Gemini 3.8 Flash Cyber (blog.google) ↗ | Announcement | blog.google | 1 | Sep 2, 2026 |
| Gemini 4 Argon (blog.google) ↗ | Announcement | blog.google | 1 | Sep 30, 2026 |
| Gemma 4 (blog.google) ↗ | Announcement | blog.google | 1 | Apr 2, 2026 |
| Google DeepMind Gemini 3.8 Audio model card ↗ | Report / card | deepmind.google | 1 | Sep 15, 2026 |
| Google Gemini 3.8 TTS announcement ↗ | Announcement | blog.google | 1 | Sep 23, 2026 |
| Google Gemini API model documentation ↗ | Docs | ai.google.dev | 1 | Aug 13, 2026 |
›DeepSeek3 source pages · 3 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| DeepSeek API changelog (dated October 17, 2026) ↗ | Changelog | api-docs.deepseek.com | 1 | Oct 17, 2026 |
| DeepSeek API Docs ↗ | Docs | api-docs.deepseek.com | 1 | Aug 13, 2026 |
| DeepSeek V4 Flash 0731 (api-docs.deepseek.com) ↗ | Changelog | api-docs.deepseek.com | 1 | Jul 31, 2026 |
›Celeris2 source pages · 2 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Celeris-1 (celeris.ai) ↗ | Announcement | celeris.ai | 1 | Jul 22, 2026 |
| Celeris-1 Decision launch report ↗ | Announcement | celeris.ai | 1 | Oct 8, 2026 |
›Cloudflare1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Cloudflare Clef launch ↗ | Announcement | blog.cloudflare.com | 1 | Oct 1, 2026 |
›Cohere1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Cohere Embed 5 launch ↗ | Announcement | cohere.com | 1 | Sep 30, 2026 |
›Fastino1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Fastino GLiDE launch announcement ↗ | Announcement | fastino.ai | 1 | Sep 30, 2026 |
›Liquid AI1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Liquid AI d1-ultra launch ↗ | Announcement | liquid.ai | 1 | Oct 15, 2026 |
›Meta1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Meta AI Research ↗ | Announcement | research.meta.ai | 1 | Sep 2, 2026 |
›Mixedbread1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Toast 1 (mixedbread.com) ↗ | Announcement | mixedbread.com | 1 | Aug 13, 2026 |
›Multiverse Computing1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Quasar 438B (multiversecomputing.com) ↗ | Announcement | multiversecomputing.com | 1 | Sep 2, 2026 |
›Paper Instruments1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Ultramarine 1 Flash (paperinstruments.com) ↗ | Announcement | paperinstruments.com | 1 | Oct 14, 2026 |
›Perplexity1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Perplexity Developers launch announcement ↗ | Announcement | x.com | 1 | Oct 1, 2026 |
›Reflection AI1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Reflection launch post (dated release) ↗ | Announcement | reflection.ai | 1 | Oct 16, 2026 |
›StepFun1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| StepFun launch announcement ↗ | Announcement | x.com | 1 | Sep 20, 2026 |
›Unbiased1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Unbiased product updates ↗ | Changelog | unbiased.ai | 1 | Oct 1, 2026 |
›xAI1 source pages · 1 releasesProvider →
| Source page | Type | Host | Cited releases | Latest citation |
|---|---|---|---|---|
| Grok 4.7 (x.ai) ↗ | Announcement | x.ai | 1 | Sep 21, 2026 |
The pages behind each release date: provider announcements, changelogs, documentation, model repositories and listings.