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Claude Haiku 5.5 vs Kimi-k1.5

Claude Haiku 5.5 leads the LLM Stats Score 50.0 to 17.1.

Anthropic · Moonshot AI · Updated for 2026

Which is better?

Claude Haiku 5.5 leads the overall LLM Stats Score 50.0 to 17.1, ranking #19 overall.

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

Choose Claude Haiku 5.5

  • overall performance matters — it scores 50.0 and ranks #19 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

Choose Kimi-k1.5

  • you are already invested in the Moonshot AI ecosystem

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
Kimi-k1.5
Moonshot AI
Core performance indexes
LLM Stats Score
50.0
#19
17.1
#234
Reasoning
47.2
#27
16.4
#231
Cost, coverage & limits
Benchmark wins
—
—
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

3 shared
Index
Claude Haiku 5.5
Kimi-k1.5
Math
25.7#110
20.2#166
Vision
30.4#33
11.0#121
Multimodal
31.4#27
14.6#103
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 9 for Kimi-k1.5

No common benchmarks found

Claude Haiku 5.5 and Kimi-k1.5don'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 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
Moonshot AI
Kimi-k1.5
Input- tokens
Output- tokens
Thu Oct 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and Kimi-k1.5 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

Kimi-k1.5

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 Haiku 5.5

Proprietary

Closed source

Kimi-k1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while Kimi-k1.5 was released on 2025-01-20.

Claude Haiku 5.5 is 21 months newer than Kimi-k1.5.

Claude Haiku 5.5

Oct 7, 2026

1 days ago

1.7yr newer
Kimi-k1.5

Jan 20, 2025

1.7 years ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while Kimi-k1.5'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 Kimi-k1.5's cutoff date.

Claude Haiku 5.5

Jun 2026

Kimi-k1.5

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and Kimi-k1.5 side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
Kimi-k1.5
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs Kimi-k1.5.

Which is better, Claude Haiku 5.5 or Kimi-k1.5?

Claude Haiku 5.5 leads the LLM Stats Score 50.0 to 17.1. Claude Haiku 5.5 is made by Anthropic and Kimi-k1.5 is made by Moonshot AI. 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 Kimi-k1.5 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%. Kimi-k1.5 scores MATH-500: 96.2%, CLUEWSC: 91.4%, C-Eval: 88.3%, MMLU: 87.4%, IFEval: 87.2%.

What are the context window sizes for Claude Haiku 5.5 and Kimi-k1.5?

Claude Haiku 5.5 supports 1.0M tokens and Kimi-k1.5 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 Kimi-k1.5?

Key differences include LLM Stats Score (50.0 vs 17.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and Kimi-k1.5?

Claude Haiku 5.5 is developed by Anthropic and Kimi-k1.5 is developed by Moonshot AI.

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