Qwen3.8-Omni-Flash vs Claude Fable 5.1

Pyyan / Compare / Qwen3.8-Omni-Flash vs Claude Fable 5.1

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Language Models · verified 20 Sept 2026

Qwen3.8-Omni-FlashAlibabacurrent

Claude Fable 5.1Anthropiccurrent

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Specification	Qwen3.8-Omni-Flash	Claude Fable 5.1
Summary	Text, image, audio and video into one million tokens of context.	Same price as Fable 5, and cache reads cost a quarter of what they did.
Context	1M	1M
Input ($/Mtok)	$0.15	$10
Output ($/Mtok)	$0.47	$50
Licence	Proprietary	Proprietary
Max output	Not published	128K
Parameters	Not published	Not published
Released	18 Sep 2026	1 Sep 2026
Model ID	qwen3.8-omni-flash	claude-fable-5-1
Category	Language Models	Language Models
Official	Alibaba ↗	—

Highlighted rows are where these differ.

Takes text, images, audio and video in one pass and returns text
Alibaba reports more than 26% average gain over Qwen3.5-Omni-Plus across 30 evaluations
No weights published, which is a change of habit for this team

Best for audio and video agents.

Matches or beats Fable 5 at low and medium effort, and pulls clear at high effort
Cache reads cut to 25% of the old price, so re-reading a long context got much cheaper
Identical model to Mythos 5.1 underneath; the difference is the safeguards

Best for coding and long-running work.