The AI arena is free today

Open Superagent

Claude Fable 5.1 vs Qwen3.7-Plus

Claude Fable 5.1 leads the LLM Stats Score 57.0 to 42.9. Qwen3.7-Plus is 35.7x cheaper per token.

Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Claude Fable 5.1 leads the overall LLM Stats Score 57.0 to 42.9, ranking #1 overall.

In the 1 individual benchmarks reported for both models, Claude Fable 5.1 wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Qwen3.7-Plus is roughly 35.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

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

Choose Claude Fable 5.1

  • overall performance matters — it scores 57.0 and ranks #1 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Sep 2026

Choose Qwen3.7-Plus

  • cost matters — it's about 35.7x cheaper per token

At a glance

The differences that matter most.

Claude Fable 5.1
Anthropic
Qwen3.7-Plus
Alibaba Cloud / Qwen Team
Core performance indexes
LLM Stats Score
57.0
#1
42.9
#43
Reasoning
54.5
#4
43.3
#38
Coding
37.0
#17
30.8
#46
Agents
42.2
#1
24.4
#47
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$10.00 / M
$0.32 / M
Output price
$50.00 / M
$1.28 / M
Context window
1,000,000
1,000,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Fable 5.1
Qwen3.7-Plus
Vision
40.8#1
32.3#20
Tool use
31.6#8
23.8#37
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

7 reported for Claude Fable 5.1 · 70 for Qwen3.7-Plus

1 shared

Claude Fable 5.1 outperforms in 1 benchmarks (Humanity's Last Exam), while Qwen3.7-Plus is better at 0 benchmarks.

Claude Fable 5.1 significantly outperforms across most benchmarks.

Thu Sep 03 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Qwen3.7-Plus costs less

For input processing, Claude Fable 5.1 ($10.00/1M tokens) is 31.3x more expensive than Qwen3.7-Plus ($0.32/1M tokens).

For output processing, Claude Fable 5.1 ($50.00/1M tokens) is 39.1x more expensive than Qwen3.7-Plus ($1.28/1M tokens).

In conclusion, Claude Fable 5.1 is more expensive than Qwen3.7-Plus.*

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

Lowest available price from all providers
Thu Sep 03 2026 • llm-stats.com
Anthropic
Claude Fable 5.1
Input tokens$10.00
Output tokens$50.00
Best providerAnthropic
Alibaba Cloud / Qwen Team
Qwen3.7-Plus
Input tokens$0.32
Output tokens$1.28
Best providerTogether
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. Claude Fable 5.1 can generate longer responses up to 128,000 tokens, while Qwen3.7-Plus is limited to 65,536 tokens.

Anthropic
Claude Fable 5.1
Input1,000,000 tokens
Output128,000 tokens
Alibaba Cloud / Qwen Team
Qwen3.7-Plus
Input1,000,000 tokens
Output65,536 tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Fable 5.1 and Qwen3.7-Plus 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

Qwen3.7-Plus

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

Qwen3.7-Plus

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Fable 5.1 was released on 2026-09-01, while Qwen3.7-Plus was released on 2026-05-31.

Claude Fable 5.1 is 3 months newer than Qwen3.7-Plus.

Claude Fable 5.1

Sep 1, 2026

1 days ago

3mo newer
Qwen3.7-Plus

May 31, 2026

3 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

Provider Availability

Claude Fable 5.1 is available from Anthropic. Qwen3.7-Plus is available from Together, Fireworks.

Claude Fable 5.1

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

Qwen3.7-Plus

together logo
Together
Input Price:Input: $0.32/1MOutput Price:Output: $1.28/1M
fireworks logo
Fireworks
Input Price:Input: $0.40/1MOutput Price:Output: $1.60/1M
* 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 Qwen3.7-Plus side-by-side, then vote on the output you prefer.

Claude Fable 5.1
✓ Preferred
Qwen3.7-Plus
Open in Playground

FAQ

Common questions about Claude Fable 5.1 vs Qwen3.7-Plus.

Which is better, Claude Fable 5.1 or Qwen3.7-Plus?

Claude Fable 5.1 leads the LLM Stats Score 57.0 to 42.9. Claude Fable 5.1 is made by Anthropic and Qwen3.7-Plus is made by Alibaba Cloud / Qwen Team. 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 Qwen3.7-Plus 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%. Qwen3.7-Plus scores IFEval: 94.6%, MMLU-Redux: 94.5%, HMMT Feb 26: 92.9%, MRCR v2: 91.7%, OmniDocBench 1.5: 91.4%.

Is Claude Fable 5.1 cheaper than Qwen3.7-Plus?

Qwen3.7-Plus is 31.3x cheaper for input tokens. Claude Fable 5.1 costs $10.00/M input and $50.00/M output via anthropic. Qwen3.7-Plus costs $0.32/M input and $1.28/M output via together.

What are the context window sizes for Claude Fable 5.1 and Qwen3.7-Plus?

Claude Fable 5.1 supports 1.0M tokens and Qwen3.7-Plus supports 1.0M 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 Qwen3.7-Plus?

Key differences include LLM Stats Score (57.0 vs 42.9), input pricing ($10.00 vs $0.32/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5.1 and Qwen3.7-Plus?

Claude Fable 5.1 is developed by Anthropic and Qwen3.7-Plus is developed by Alibaba Cloud / Qwen Team.

Related comparisons