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Claude Haiku 5.5 vs Qwen3.8-Flash-Next

Claude Haiku 5.5 and Qwen3.8-Flash-Next are closely matched at 50.0 and 48.3 on the LLM Stats Score.

Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Claude Haiku 5.5 and Qwen3.8-Flash-Next are closely matched on the overall LLM Stats Score at 50.0 and 48.3.

In the 2 individual benchmarks reported for both models, Claude Haiku 5.5 wins 2; this is a narrower head-to-head signal than the composite indexes.

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

Choose Claude Haiku 5.5

  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • you want the most recent training data — it shipped Oct 2026

Choose Qwen3.8-Flash-Next

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

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
Qwen3.8-Flash-Next
Alibaba Cloud / Qwen Team
Core performance indexes
LLM Stats Score
50.0
#19
48.3
#27
Reasoning
47.2
#27
48.4
#20
Coding
40.2
#13
34.1
#36
Agents
33.3
#28
33.2
#29
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
$0.10 / M
— / M
Output price
$0.50 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
Claude Haiku 5.5
Qwen3.8-Flash-Next
Math
25.7#110
32.7#60
Vision
30.4#33
33.7#17
Tool use
20.3#59
29.1#13
Multimodal
31.4#27
35.3#12
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 22 for Qwen3.8-Flash-Next

2 shared

Claude Haiku 5.5 outperforms in 2 benchmarks (SWE-bench Multilingual, SWE-Bench Pro), while Qwen3.8-Flash-Next is better at 0 benchmarks.

Claude Haiku 5.5 significantly outperforms across most benchmarks.

Mon Oct 12 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude Haiku 5.5 specifies input context (1,000,000 tokens). Only Claude Haiku 5.5 specifies output context (128,000 tokens).

Anthropic
Claude Haiku 5.5
Input1,000,000 tokens
Output128,000 tokens
Alibaba Cloud / Qwen Team
Qwen3.8-Flash-Next
Input- tokens
Output- tokens
Mon Oct 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and Qwen3.8-Flash-Next support multimodal inputs.

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

Claude Haiku 5.5

Text
Images
Audio
Video

Qwen3.8-Flash-Next

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Haiku 5.5 is licensed under a proprietary license, while Qwen3.8-Flash-Next uses Qwen Community License 1.0.

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

Claude Haiku 5.5

Proprietary

Closed source

Qwen3.8-Flash-Next

Qwen Community License 1.0

Open weights

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while Qwen3.8-Flash-Next was released on 2026-08-26.

Claude Haiku 5.5 is 1 month newer than Qwen3.8-Flash-Next.

Claude Haiku 5.5

Oct 7, 2026

4 days ago

1mo newer
Qwen3.8-Flash-Next

Aug 26, 2026

1 months ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while Qwen3.8-Flash-Next's cutoff date is not specified.

We can confirm Claude Haiku 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without Qwen3.8-Flash-Next's cutoff date.

Claude Haiku 5.5

Jun 2026

Qwen3.8-Flash-Next

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and Qwen3.8-Flash-Next side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
Qwen3.8-Flash-Next
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs Qwen3.8-Flash-Next.

Which is better, Claude Haiku 5.5 or Qwen3.8-Flash-Next?

Claude Haiku 5.5 and Qwen3.8-Flash-Next are closely matched on the LLM Stats Score at 50.0 and 48.3. Claude Haiku 5.5 is made by Anthropic and Qwen3.8-Flash-Next 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 Haiku 5.5 compare to Qwen3.8-Flash-Next in benchmarks?

Claude Haiku 5.5 scores Global-MMLU: 87.8%, MILU: 87.6%, BenchCAD (with Python tool): 87.0%, Chartography: 86.2%, SWE-bench Multilingual: 83.7%. Qwen3.8-Flash-Next scores MathVision: 95.7%, LiveCodeBench v6: 91.9%, GPQA: 91.7%, CharXiv-R: 90.6%, RealWorldQA: 88.5%.

What are the context window sizes for Claude Haiku 5.5 and Qwen3.8-Flash-Next?

Claude Haiku 5.5 supports 1.0M tokens and Qwen3.8-Flash-Next 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 Haiku 5.5 and Qwen3.8-Flash-Next?

Key differences include LLM Stats Score (50.0 vs 48.3), licensing (Proprietary vs Qwen Community License 1.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and Qwen3.8-Flash-Next?

Claude Haiku 5.5 is developed by Anthropic and Qwen3.8-Flash-Next is developed by Alibaba Cloud / Qwen Team.

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