Which is cheaper, Claude Fable 5.1 and MiniMax M3.1 Flash?

MiniMax M3.1 Flash has the lowest input price. Per 1M input tokens: Claude Fable 5.1 from $10.00 and MiniMax M3.1 Flash from $0.15.

Which is smarter, Claude Fable 5.1 and MiniMax M3.1 Flash?

Claude Fable 5.1 scores highest on the Artificial Analysis Intelligence Index: Claude Fable 5.1 47.0 and MiniMax M3.1 Flash 28.9.

Can I switch between Claude Fable 5.1 and MiniMax M3.1 Flash without changing my code?

Yes. All of them are served through FastRouter's OpenAI-compatible API, so switching is a change of the model parameter (anthropic/claude-fable-5.1, minimax/minimax-m3.1-flash).

Claude Fable 5.1 vs MiniMax M3.1 Flash

Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.

Estimate monthly cost for these models

Claude Fable 5.1 Anthropicanthropic/claude-fable-5.1

MiniMax M3.1 Flash Minimaxminimax/minimax-m3.1-flash

Creator

Anthropic

Minimax

Released

Sep 1, 2026

Oct 19, 2026

Context window

Max output

128K

524K

Input / 1MLowest provider price

$10.00

$0.15

Output / 1MLowest provider price

$50.00

$0.60

Providers

IntelligenceArtificial Analysis index

47.0

28.9

Accepts

Text, Image, Files

Text, Image, Video

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

Claude Fable 5.1 vs MiniMax M3.1 Flash: summary

Claude Fable 5.1 and MiniMax M3.1 Flash are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

Claude Fable 5.1, from Anthropic, has a 1,000,000-token context window, costs $10.00/1M input and $50.00/1M output tokens and scores 47.0 on the Artificial Analysis Intelligence Index.

MiniMax M3.1 Flash, from Minimax, has a 1,000,000-token context window, costs $0.15/1M input and $0.60/1M output tokens and scores 28.9 on the Artificial Analysis Intelligence Index.

MiniMax M3.1 Flash is the cheapest on input, 67× cheaper than the next model and Claude Fable 5.1 scores highest for intelligence.

Switch with one line

client = OpenAI(base_url="https://api.fastrouter.ai/api/v1", api_key="<FASTROUTER_API_KEY>") client.chat.completions.create(model="anthropic/claude-fable-5.1", messages=[...]) # or client.chat.completions.create(model="minimax/minimax-m3.1-flash", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis