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Claude Fable 5.1 vs MAI-Code-1.1-Flash

Claude Fable 5.1 leads the LLM Stats Score 56.8 to 28.3. MAI-Code-1.1-Flash is 44.4x cheaper per token.

Anthropic · Microsoft · Updated for 2026

Which is better?

Claude Fable 5.1 leads the overall LLM Stats Score 56.8 to 28.3, ranking #2 overall.

On price, MAI-Code-1.1-Flash is roughly 44.4x 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 56.8 and ranks #2 on LLM Stats
  • your work emphasizes reasoning and coding — 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 MAI-Code-1.1-Flash

  • cost matters — it's about 44.4x cheaper per token

At a glance

The differences that matter most.

Claude Fable 5.1
Anthropic
MAI-Code-1.1-Flash
Microsoft
Core performance indexes
LLM Stats Score
56.8
#2
28.3
#126
Reasoning
53.9
#5
28.0
#122
Coding
36.0
#23
19.1
#102
Agents
41.9
#2
10.4
#107
Cost, coverage & limits
Benchmark wins
—
—
Input price
$10.00 / M
$0.20 / M
Output price
$50.00 / M
$1.20 / M
Context window
1,000,000
256,000

Individual benchmarks

7 reported for Claude Fable 5.1 · 2 for MAI-Code-1.1-Flash

No common benchmarks found

Claude Fable 5.1 and MAI-Code-1.1-Flashdon'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

MAI-Code-1.1-Flash costs less

For input processing, Claude Fable 5.1 ($10.00/1M tokens) is 50.0x more expensive than MAI-Code-1.1-Flash ($0.20/1M tokens).

For output processing, Claude Fable 5.1 ($50.00/1M tokens) is 41.7x more expensive than MAI-Code-1.1-Flash ($1.20/1M tokens).

In conclusion, Claude Fable 5.1 is more expensive than MAI-Code-1.1-Flash.*

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

Lowest available price from all providers
Fri Sep 04 2026 • llm-stats.com
Anthropic
Claude Fable 5.1
Input tokens$10.00
Output tokens$50.00
Best providerAnthropic
Microsoft
MAI-Code-1.1-Flash
Input tokens$0.20
Output tokens$1.20
Best providerUnknown Organization
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 MAI-Code-1.1-Flash's 256,000 tokens. Only Claude Fable 5.1 specifies output context (128,000 tokens).

Anthropic
Claude Fable 5.1
Input1,000,000 tokens
Output128,000 tokens
Microsoft
MAI-Code-1.1-Flash
Input256,000 tokens
Output- tokens
Fri Sep 04 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Fable 5.1 and MAI-Code-1.1-Flash 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

MAI-Code-1.1-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 5.1

Proprietary

Closed source

MAI-Code-1.1-Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Fable 5.1 was released on 2026-09-01, while MAI-Code-1.1-Flash was released on 2026-08-11.

Claude Fable 5.1 is 1 month newer than MAI-Code-1.1-Flash.

Claude Fable 5.1

Sep 1, 2026

3 days ago

3w newer
MAI-Code-1.1-Flash

Aug 11, 2026

3 weeks 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. MAI-Code-1.1-Flash is available from GitHub Copilot.

Claude Fable 5.1

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

MAI-Code-1.1-Flash

github-copilot logo
Unknown Organization
Input Price:Input: $0.20/1MOutput Price:Output: $1.20/1M
* 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 MAI-Code-1.1-Flash side-by-side, then vote on the output you prefer.

Claude Fable 5.1
✓ Preferred
MAI-Code-1.1-Flash
Open in Playground

FAQ

Common questions about Claude Fable 5.1 vs MAI-Code-1.1-Flash.

Which is better, Claude Fable 5.1 or MAI-Code-1.1-Flash?

Claude Fable 5.1 leads the LLM Stats Score 56.8 to 28.3. Claude Fable 5.1 is made by Anthropic and MAI-Code-1.1-Flash is made by Microsoft. 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 MAI-Code-1.1-Flash 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%. MAI-Code-1.1-Flash scores SWE-Bench Verified: 72.6%, Terminal-Bench 2.1: 62.9%.

Is Claude Fable 5.1 cheaper than MAI-Code-1.1-Flash?

MAI-Code-1.1-Flash is 50.0x cheaper for input tokens. Claude Fable 5.1 costs $10.00/M input and $50.00/M output via anthropic. MAI-Code-1.1-Flash costs $0.20/M input and $1.20/M output via github-copilot.

What are the context window sizes for Claude Fable 5.1 and MAI-Code-1.1-Flash?

Claude Fable 5.1 supports 1.0M tokens and MAI-Code-1.1-Flash supports 256K 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 MAI-Code-1.1-Flash?

Key differences include LLM Stats Score (56.8 vs 28.3), context window (1.0M vs 256K), input pricing ($10.00 vs $0.20/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5.1 and MAI-Code-1.1-Flash?

Claude Fable 5.1 is developed by Anthropic and MAI-Code-1.1-Flash is developed by Microsoft.

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