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Claude Fable 5.1 vs Ministral 3 (8B Instruct 2512)

Claude Fable 5.1 leads the LLM Stats Score 55.7 to 7.7.

Anthropic · Mistral AI · Updated for 2026

Which is better?

Claude Fable 5.1 leads the overall LLM Stats Score 55.7 to 7.7, ranking #2 overall.

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

Choose Claude Fable 5.1

  • overall performance matters — it scores 55.7 and ranks #2 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Ministral 3 (8B Instruct 2512)

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Fable 5.1
Anthropic
Ministral 3 (8B Instruct 2512)
Mistral AI
Core performance indexes
LLM Stats Score
55.7
#2
7.7
#285
Reasoning
52.8
#5
9.2
#263
Cost, coverage & limits
Benchmark wins
—
—
Input price
$10.00 / M
— / M
Output price
$50.00 / M
— / M
Context window
1,000,000
—

Individual benchmarks

7 reported for Claude Fable 5.1 · 4 for Ministral 3 (8B Instruct 2512)

No common benchmarks found

Claude Fable 5.1 and Ministral 3 (8B Instruct 2512)don'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

Context Window

Maximum input and output token capacity

Only Claude Fable 5.1 specifies input context (1,000,000 tokens). Only Claude Fable 5.1 specifies output context (128,000 tokens).

Anthropic
Claude Fable 5.1
Input1,000,000 tokens
Output128,000 tokens
Mistral AI
Ministral 3 (8B Instruct 2512)
Input- tokens
Output- tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Fable 5.1 and Ministral 3 (8B Instruct 2512) 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

Ministral 3 (8B Instruct 2512)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Fable 5.1 is licensed under a proprietary license, while Ministral 3 (8B Instruct 2512) 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

Ministral 3 (8B Instruct 2512)

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Fable 5.1 was released on 2026-09-01, while Ministral 3 (8B Instruct 2512) was released on 2025-12-04.

Claude Fable 5.1 is 9 months newer than Ministral 3 (8B Instruct 2512).

Claude Fable 5.1

Sep 1, 2026

2 weeks ago

9mo newer
Ministral 3 (8B Instruct 2512)

Dec 4, 2025

9 months 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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Fable 5.1 and Ministral 3 (8B Instruct 2512) side-by-side, then vote on the output you prefer.

Claude Fable 5.1
✓ Preferred
Ministral 3 (8B Instruct 2512)
Open in Playground

FAQ

Common questions about Claude Fable 5.1 vs Ministral 3 (8B Instruct 2512).

Which is better, Claude Fable 5.1 or Ministral 3 (8B Instruct 2512)?

Claude Fable 5.1 leads the LLM Stats Score 55.7 to 7.7. Claude Fable 5.1 is made by Anthropic and Ministral 3 (8B Instruct 2512) 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 Ministral 3 (8B Instruct 2512) 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%. Ministral 3 (8B Instruct 2512) scores MATH: 87.6%, Wild Bench: 66.8%, Arena Hard: 50.9%, MM-MT-Bench: 8.1%.

What are the context window sizes for Claude Fable 5.1 and Ministral 3 (8B Instruct 2512)?

Claude Fable 5.1 supports 1.0M tokens and Ministral 3 (8B Instruct 2512) supports an unknown number of 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 Ministral 3 (8B Instruct 2512)?

Key differences include LLM Stats Score (55.7 vs 7.7), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5.1 and Ministral 3 (8B Instruct 2512)?

Claude Fable 5.1 is developed by Anthropic and Ministral 3 (8B Instruct 2512) is developed by Mistral AI.

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