AI model releases in September 2026

The confirmed release record for September 2026, grouped by provider and linked to the primary source used for each date.

41 confirmed releases26 providersData through Sep 30, 2026How releases are confirmed

September 2026

41 releases across 26 providers

Confirmed releases

Release	Provider	Confirmed	Evidence	BenchLM
September 2026· 41 releases
Embed 5 Pro and Fast2 model variants	Cohere	Sep 30, 2026Exact day	Cohere Embed 5 launch	Benchmarks
GLiDE	Fastino	Sep 30, 2026Exact day	Fastino GLiDE launch announcement	Benchmarks
Gemini 4 Argon	Google	Sep 30, 2026Exact day	Google	Benchmarks
Mercury Voice	Inception	Sep 29, 2026Exact day	Inception Mercury Voice launch post	Benchmarks
Ling 3.1 Flash	InclusionAI	Sep 29, 2026Exact day	Vercel AI Gateway listing MIT-licensed FP8 weights	Benchmarks
GPT-6.1 Sol	OpenAI	Sep 29, 2026Exact day	OpenAI GPT-6.1 Sol launch post	Benchmarks
Claude Sonnet 5.5	Anthropic	Sep 28, 2026Exact day	Anthropic Claude Sonnet 5.5 announcement	Benchmarks
Eleven v4 and Eleven v4 Turbo2 model variants	ElevenLabs	Sep 28, 2026Exact day	ElevenLabs model documentation	Benchmarks
MiniMax M3.1 Flash Preview	MiniMax	Sep 27, 2026Exact day	MiniMax Agent launch post on X	Benchmarks
Ember-1	Fireworks	Sep 23, 2026Exact day	Fireworks Research launch post	Benchmarks
Gemini 3.8 Flash TTS and Flash-Lite TTS2 model variants	Google	Sep 23, 2026Exact day	Google Gemini 3.8 TTS announcement	Benchmarks
Claude Opus 5.5	Anthropic	Sep 22, 2026Exact day	Anthropic	Benchmarks
Parakeet Redux	Moondream	Sep 22, 2026Exact day	Moondream Parakeet launch post Parakeet Redux weights and model card	Benchmarks
GPT-6 Sol and GPT-6 Luna2 model variants	OpenAI	Sep 22, 2026Exact day	OpenAI	Benchmarks
MiMo-V2.6-Pro and MiMo-V2.6-Flash2 model variants	Xiaomi	Sep 22, 2026Exact day	Xiaomi MiMo-V2.6 launch	Benchmarks
Grok 4.7	xAI	Sep 21, 2026Exact day	xAI	Benchmarks
Step 5 Preview	StepFun	Sep 20, 2026Exact day	StepFun launch announcement StepFun published weights	Benchmarks
Qwen3.8-Omni-Flash	Alibaba	Sep 18, 2026Exact day	Qwen	Benchmarks
Grok Voice Transcribe 2.0	xAI	Sep 18, 2026Exact day	xAI	Benchmarks
Ternary Bonsai 2 27B	Prism ML	Sep 17, 2026Exact day	PrismML Hugging Face	Benchmarks
Pareto 26.9	Unbiased	Sep 17, 2026Exact day	Unbiased model card	Benchmarks
Canto	Wispr	Sep 17, 2026Exact day	Wispr Advanced Interfaces Lab	Benchmarks
Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking2 model variants	Google	Sep 15, 2026Exact day	Google DeepMind Gemini 3.8 Audio model card	Benchmarks
Atria Dawn Preview	Shanghai Artificial Intelligence Laboratory	Sep 14, 2026Exact day	Atria ASI	Benchmarks
SWE-2	Cognition	Sep 10, 2026Exact day	Cognition	Benchmarks
North Small Translate	Cohere	Sep 10, 2026Exact day	Cohere Hugging Face	Benchmarks
GPT-Live-1 in the API	OpenAI	Sep 10, 2026Exact day	OpenAI	Benchmarks
Desert Ant Labs on-device model suite12 model variants	Desert Ant Labs	Sep 8, 2026Exact day	Desert Ant Labs Hugging Face
Mercury 2.5	Inception	Sep 8, 2026Exact day	Inception	Benchmarks
MiniCPM5-2B	OpenBMB	Sep 6, 2026Exact day	OpenBMB	Benchmarks
Ling 3.0 Flash VL	InclusionAI	Sep 4, 2026Exact day	InclusionAI	Benchmarks
MAI-Transcribe-2	Microsoft	Sep 3, 2026Exact day	Microsoft	Benchmarks
GPT-6 Astra	OpenAI	Sep 3, 2026Exact day	OpenAI GPT-6 Astra model documentation	Benchmarks
Gemini 3.8 Flash and Gemini 3.8 Flash Cyber2 model variants	Google	Sep 2, 2026Exact day	Google	Benchmarks
Muse Spark 1.3	Meta	Sep 2, 2026Exact day	Meta AI Research	Benchmarks
VibeVoice-ASR-Streaming 1.5B	Microsoft	Sep 2, 2026Exact day	Microsoft	Benchmarks
VibeVoice-ASR-Streaming 7B	Microsoft	Sep 2, 2026Exact day	Microsoft	Benchmarks
Quasar 438B	Multiverse Computing	Sep 2, 2026Exact day	Multiverse Computing	Benchmarks
Claude Fable 5.1 and Claude Mythos 5.12 model variants	Anthropic	Sep 1, 2026Exact day	Anthropic	Benchmarks
Phonon-2	Fermion Research	September 2026Month precision	Fermion Research Phonon-2 launch report Phonon-2 weights and model card	Benchmarks
Muse Voice Transcribe	Meta	Sep 1, 2026Exact day	Meta AI Research	Benchmarks

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