Claude Fable 5 vs Kimi K3 1M

Anthropic's Claude Fable 5 against Moonshot's Kimi K3 1M — price, context and what each is best at. Both are available through one OpenAI-compatible API.

AnyModel — you pay	Claude Fable 5	Kimi K3 1M
Vendor	Anthropic	Moonshot
Input / 1M	$0.4	$0.05
Output / 1M	$0.4	$0.05
Context	1M	1M
Best for	Hardest problems	Long documents

Claude Fable 5

Anthropic's Mythos-class tier above Opus — #1 on our AI Arena.

Claude Fable 5 is the first model of Anthropic's Claude 5 family — a Mythos-class tier that sits above Opus in capability. It tops our agentic AI Arena ranking and comes with a 1M-token window. Vendor list price is $10/$50 per 1M.

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Kimi K3 1M

Moonshot's flagship with the full million-token window.

Kimi K3 1M is Moonshot's newest flagship — coding, image understanding and long-horizon reasoning — served over our own metered capacity with the model's full 1M-token context instead of the 256K the Kimi Code subscription route allows.

More about Kimi K3 1M →

Quick take: Kimi K3 1M is cheaper on output tokens ($0.05 vs $0.4 per 1M). Compare their strengths and context for your task; you can switch the model id at any time.

FAQ

Which is cheaper, Claude Fable 5 or Kimi K3 1M?

Kimi K3 1M is cheaper on output tokens ($0.05 vs $0.4 per 1M).

Which has a larger context window, Claude Fable 5 or Kimi K3 1M?

Claude Fable 5: 1M; Kimi K3 1M: 1M.