Model Comparison

Claude Fable 5 vs MAI-Code-1-FlashWhich is better in 2026?

Claude Fable 5 significantly outperforms across most benchmarks.

Verdict: Claude Fable 5 vs MAI-Code-1-Flash — which is better?

Claude Fable 5 (by Anthropic) and MAI-Code-1-Flash (by Microsoft) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude Fable 5 outperforms in 3 benchmarks (Humanity's Last Exam, SWE-Bench Pro, SWE-Bench Verified), while MAI-Code-1-Flash is better at 0 benchmarks. Claude Fable 5 significantly outperforms across most benchmarks.

Choose Claude Fable 5 if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
  • you want the most recent training data — it shipped Jun 2026

Choose MAI-Code-1-Flash if…

  • you are already invested in the Microsoft ecosystem

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude Fable 5 outperforms in 3 benchmarks (Humanity's Last Exam, SWE-Bench Pro, SWE-Bench Verified), while MAI-Code-1-Flash is better at 0 benchmarks.

Claude Fable 5 significantly outperforms across most benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Fable 5 specifies input context (1,000,000 tokens). Only Claude Fable 5 specifies output context (128,000 tokens).

Anthropic
Claude Fable 5
Input1,000,000 tokens
Output128,000 tokens
Microsoft
MAI-Code-1-Flash
Input- tokens
Output- tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Fable 5 supports multimodal inputs, whereas MAI-Code-1-Flash does not.

Claude Fable 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Fable 5

Text
Images
Audio
Video

MAI-Code-1-Flash

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Fable 5

Proprietary

Closed source

MAI-Code-1-Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Fable 5 was released on 2026-06-09, while MAI-Code-1-Flash was released on 2026-06-02.

Claude Fable 5 is 0 month newer than MAI-Code-1-Flash.

Claude Fable 5

Jun 9, 2026

1 months ago

1w newer
MAI-Code-1-Flash

Jun 2, 2026

1 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→

Key Takeaways

Anthropic
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Higher Humanity's Last Exam score (64.5% vs 18.0%)
Higher SWE-Bench Pro score (80.0% vs 51.2%)
Higher SWE-Bench Verified score (95.0% vs 71.6%)
Microsoft

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Fable 5 and MAI-Code-1-Flash side-by-side, then vote on the output you prefer.

Claude Fable 5
✓ Preferred
MAI-Code-1-Flash
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Fable 5
Microsoft
MAI-Code-1-Flash

FAQ

Common questions about Claude Fable 5 vs MAI-Code-1-Flash.

Which is better, Claude Fable 5 or MAI-Code-1-Flash?

Claude Fable 5 significantly outperforms across most benchmarks. Claude Fable 5 is made by Anthropic and MAI-Code-1-Flash is made by Microsoft. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Fable 5 compare to MAI-Code-1-Flash in benchmarks?

Claude Fable 5 scores SWE-Bench Verified: 95.0%, FrontierSWE: 90.0%, OSWorld-Verified: 85.0%, Terminal-Bench 2.1: 84.3%, SWE-Bench Pro: 80.0%. MAI-Code-1-Flash scores AIME 2026: 92.5%, GPQA: 84.6%, IFBench: 75.0%, Tau2 Telecom: 71.7%, SWE-Bench Verified: 71.6%.

What are the context window sizes for Claude Fable 5 and MAI-Code-1-Flash?

Claude Fable 5 supports 1.0M tokens and MAI-Code-1-Flash 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 and MAI-Code-1-Flash?

Key differences include multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5 and MAI-Code-1-Flash?

Claude Fable 5 is developed by Anthropic and MAI-Code-1-Flash is developed by Microsoft.

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