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Claude Fable 5.1 vs Mistral Small 3.1 24B Base

Claude Fable 5.1 leads the LLM Stats Score 54.8 to 0.5. Mistral Small 3.1 24B Base is 133.3x cheaper per token.

Anthropic · Mistral AI · Updated for 2026

Which is better?

Claude Fable 5.1 leads the overall LLM Stats Score 54.8 to 0.5, ranking #5 overall.

On price, Mistral Small 3.1 24B Base is roughly 133.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Fable 5.1 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Fable 5.1

  • overall performance matters — it scores 54.8 and ranks #5 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Mistral Small 3.1 24B Base

  • cost matters — it's about 133.3x cheaper per token
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Fable 5.1
Anthropic
Mistral Small 3.1 24B Base
Mistral AI
Core performance indexes
LLM Stats Score
54.8
#5
0.5
#309
Reasoning
52.1
#7
0.7
#300
Cost, coverage & limits
Benchmark wins
—
—
Input price
$10.00 / M
$0.10 / M
Output price
$50.00 / M
$0.30 / M
Context window
1,000,000
128,000

Individual benchmarks

7 reported for Claude Fable 5.1 · 5 for Mistral Small 3.1 24B Base

No common benchmarks found

Claude Fable 5.1 and Mistral Small 3.1 24B Basedon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Mistral Small 3.1 24B Base costs less

For input processing, Claude Fable 5.1 ($10.00/1M tokens) is 100.0x more expensive than Mistral Small 3.1 24B Base ($0.10/1M tokens).

For output processing, Claude Fable 5.1 ($50.00/1M tokens) is 166.7x more expensive than Mistral Small 3.1 24B Base ($0.30/1M tokens).

In conclusion, Claude Fable 5.1 is more expensive than Mistral Small 3.1 24B Base.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Sep 02 2026 • llm-stats.com
Anthropic
Claude Fable 5.1
Input tokens$10.00
Output tokens$50.00
Best providerAnthropic
Mistral AI
Mistral Small 3.1 24B Base
Input tokens$0.10
Output tokens$0.30
Best providerMistral
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Fable 5.1 accepts 1,000,000 input tokens compared to Mistral Small 3.1 24B Base's 128,000 tokens. Both models can generate responses up to 128,000 tokens.

Anthropic
Claude Fable 5.1
Input1,000,000 tokens
Output128,000 tokens
Mistral AI
Mistral Small 3.1 24B Base
Input128,000 tokens
Output128,000 tokens
Wed Sep 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Fable 5.1 and Mistral Small 3.1 24B Base support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Fable 5.1

Text
Images
Audio
Video

Mistral Small 3.1 24B Base

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Fable 5.1 is licensed under a proprietary license, while Mistral Small 3.1 24B Base uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Claude Fable 5.1

Proprietary

Closed source

Mistral Small 3.1 24B Base

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Fable 5.1 was released on 2026-09-01, while Mistral Small 3.1 24B Base was released on 2025-03-17.

Claude Fable 5.1 is 18 months newer than Mistral Small 3.1 24B Base.

Claude Fable 5.1

Sep 1, 2026

1 days ago

1.5yr newer
Mistral Small 3.1 24B Base

Mar 17, 2025

1.5 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Claude Fable 5.1 is available from Anthropic. Mistral Small 3.1 24B Base is available from Mistral AI.

Claude Fable 5.1

anthropic logo
Anthropic
Input Price:Input: $10.00/1MOutput Price:Output: $50.00/1M

Mistral Small 3.1 24B Base

mistral logo
Mistral
Input Price:Input: $0.10/1MOutput Price:Output: $0.30/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Fable 5.1 and Mistral Small 3.1 24B Base side-by-side, then vote on the output you prefer.

Claude Fable 5.1
✓ Preferred
Mistral Small 3.1 24B Base
Open in Playground

FAQ

Common questions about Claude Fable 5.1 vs Mistral Small 3.1 24B Base.

Which is better, Claude Fable 5.1 or Mistral Small 3.1 24B Base?

Claude Fable 5.1 leads the LLM Stats Score 54.8 to 0.5. Claude Fable 5.1 is made by Anthropic and Mistral Small 3.1 24B Base is made by Mistral AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Fable 5.1 compare to Mistral Small 3.1 24B Base in benchmarks?

Claude Fable 5.1 scores OSWorld 2.0: 77.9%, CursorBench v3.2: 73.4%, Humanity's Last Exam: 65.0%, GDPval-AA: 61.8%, Terminal-Bench 4.0: 55.8%. Mistral Small 3.1 24B Base scores MMLU: 81.0%, TriviaQA: 80.5%, MMMU: 59.3%, MMLU-Pro: 56.0%, GPQA: 37.5%.

Is Claude Fable 5.1 cheaper than Mistral Small 3.1 24B Base?

Mistral Small 3.1 24B Base is 100.0x cheaper for input tokens. Claude Fable 5.1 costs $10.00/M input and $50.00/M output via anthropic. Mistral Small 3.1 24B Base costs $0.10/M input and $0.30/M output via mistral.

What are the context window sizes for Claude Fable 5.1 and Mistral Small 3.1 24B Base?

Claude Fable 5.1 supports 1.0M tokens and Mistral Small 3.1 24B Base supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Fable 5.1 and Mistral Small 3.1 24B Base?

Key differences include LLM Stats Score (54.8 vs 0.5), context window (1.0M vs 128K), input pricing ($10.00 vs $0.10/M), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5.1 and Mistral Small 3.1 24B Base?

Claude Fable 5.1 is developed by Anthropic and Mistral Small 3.1 24B Base is developed by Mistral AI.

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