Next AI Model logo

Next AI Model

Archives
Log in
Subscribe
September 14, 2026

This week in AI models: DeepSeek-V4.1-Flash, GPT Image 2.5, MAI-Image-2.6 +7 more

What each of this week’s 10 new AI models changed, with the numbers and their sources.

What shipped
● OpenAI · GPT · released Sep 3 · added this week
GPT-6 Astra
OpenAI's new flagship: far fewer made-up answers and a third of the tokens on coding-agent work, but the same overall score as GPT-5.6 Sol — at 2.5 times the price.
Compared with GPT-5.6 Sol · the model it replaces
51% ▼ down from 92% · 41 points fewer
Invents facts on half as many trick questions · AA hallucination rate
$10 / $50 up from $4 / $20 · 2.5× the price
Costs 2.5 times more to run than Sol · Price per 1M tokens
Full card and timeline →
Sources: OpenAI · Artificial Analysis · CNBC
● Anthropic · Claude Fable · released Sep 1 · added this week
Claude Fable 5.1
Anthropic's top model, refreshed: big jumps on long coding and scientific-research tasks, and cached input now costs 75% less — same headline price as Fable 5.
Compared with Claude Fable 5 · the model it replaces
55.8% ▲ up from 42.0% · +14 points
Finishes over half of long multi-step coding tasks · Terminal-Bench 4.0
$10 / $50 same as Fable 5 · cache reads now $0.25
Same price — and cached input now costs 75% less · Price per 1M tokens
Full card and timeline →
Sources: Anthropic · VentureBeat
● Google · Gemini Flash · released Sep 2 · added this week
Gemini 3.8 Flash
Google's new Flash: a big jump on command-line tasks and a few points smarter, at the same price — though it burns about 30% more tokens per task, and the price doubles in 2027.
Compared with Gemini 3.7 Flash · the model it replaces
90.8% ▲ up from 81.6% · +9 points
Finishes 9 in 10 multi-step tasks at the command line · Terminal-Bench 2.1
$0.75 / $3.75 unchanged · doubles to $1.50 / $7.50 on Jan 1, 2027
Same price as 3.7 Flash — until the end of 2026 · Price per 1M tokens
Full card and timeline →
Sources: Google · Vellum · 9to5Google
Also new this week
● OpenAI · GPT Image · image model · Sep 8
GPT Image 2.5
Ships as two variants in ChatGPT and the API: Flare, with higher quality than GPT Image 2 at 50% lower latency, and Sunburst, a slower model for precise editing work.
● Meta · Muse · released Sep 2 · added this week
Muse Spark 1.3
Meta's flagship edges closer to the leaders: four points up on the all-round score and clear gains on office and terminal tasks, at the same price and the same 1M-token context.
● Google · Gemini Omni · video model · released Aug 27 · added this week
Gemini Omni 1.1 Flash
Scene extension now reads 10 seconds of prior footage (up from 1) for clips up to 40 seconds, adds first-and-last-frame camera control, 4K upscaling and a 360p draft mode that renders up to 60% faster at a third of the cost.
● DeepSeek · DeepSeek Flash · open weights · Sep 10
DeepSeek-V4.1-Flash
A new encoder-decoder design that activates only 8B parameters on input and 16B on output, beating V4-Flash on every agentic test DeepSeek published while keeping the MIT licence and 1M-token context — though the API price more than doubles.
● Microsoft · MAI Image · image model · released Sep 4 · added this week
MAI-Image-2.6
No. 2 on the Arena text-to-image leaderboard, +79 Elo over MAI-Image-2.5 across all eight categories.
● Alibaba · Wan · video model · open weights · released Aug 24 · added this week
Wan 3.0
Doubles the maximum clip length to 30 seconds in a single pass, accepts documents (PDF, PPT, DOC) as input alongside text, image, audio and video, and improves face realism and reference consistency.
● Alibaba · Qwen Flash · open weights · released Aug 26 · added this week
Qwen3.8-Flash-Next
Open-weight mixture-of-experts model with 125B total parameters but only 6B active per token, a 262K native context window and a built-in vision encoder, previewing the Qwen4 architecture.
See where every line stands →
Next AI Model checks 9 AI makers for new models every morning. Every number comes from the maker or an independent test, with its source. One email a week, only when something ships.
Tracker  ·  Past issues  ·  RSS feed  ·  How it works
Don't miss what's next. Subscribe to Next AI Model:
← Newer New AI model: Qwen3.8-Omni-Flash
www.nextaimodel.com
Powered by Buttondown, the easiest way to start and grow your newsletter.