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Claude Haiku 5.5 vs Gemini 4 Argon

Gemini 4 Argon leads the LLM Stats Score 55.1 to 50.0.

Anthropic · Google · Updated for 2026

Which is better?

Gemini 4 Argon leads the overall LLM Stats Score 55.1 to 50.0, ranking #4 overall.

In the 4 individual benchmarks reported for both models, Gemini 4 Argon wins 4; 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 want the most recent training data — it shipped Oct 2026

Choose Gemini 4 Argon

  • overall performance matters — it scores 55.1 and ranks #4 on LLM Stats
  • your work emphasizes reasoning and agents — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
Gemini 4 Argon
Google
Core performance indexes
LLM Stats Score
50.0
#19
55.1
#4
Reasoning
47.2
#27
52.4
#7
Coding
40.2
#13
44.1
#4
Agents
33.3
#28
40.5
#4
Cost, coverage & limits
Benchmark wins
0 of 4
4 of 4
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
Gemini 4 Argon
Vision
30.4#33
36.8#8
Tool use
20.3#59
30.6#6
Multimodal
31.4#27
36.9#8
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 19 for Gemini 4 Argon

4 shared

Claude Haiku 5.5 outperforms in 0 benchmarks, while Gemini 4 Argon is better at 4 benchmarks (Chartography (no tools), FrontierSWE V2, Terminal-Bench 4.0, Terminal-Bench-Science 0.1).

Gemini 4 Argon significantly outperforms across most benchmarks.

Thu Oct 08 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
Google
Gemini 4 Argon
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 Gemini 4 Argon 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

Gemini 4 Argon

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

Gemini 4 Argon

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while Gemini 4 Argon was released on 2026-09-30.

Claude Haiku 5.5 is 0 month newer than Gemini 4 Argon.

Claude Haiku 5.5

Oct 7, 2026

0 days ago

1w newer
Gemini 4 Argon

Sep 30, 2026

1 weeks ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while Gemini 4 Argon'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 Gemini 4 Argon's cutoff date.

Claude Haiku 5.5

Jun 2026

Gemini 4 Argon

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and Gemini 4 Argon side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
Gemini 4 Argon
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs Gemini 4 Argon.

Which is better, Claude Haiku 5.5 or Gemini 4 Argon?

Gemini 4 Argon leads the LLM Stats Score 55.1 to 50.0. Claude Haiku 5.5 is made by Anthropic and Gemini 4 Argon is made by Google. 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 Gemini 4 Argon 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%. Gemini 4 Argon scores Graphwalks BFS <128k: 99.7%, Vibe Code Bench: 91.9%, LVBench: 91.7%, LABBench2: 88.8%, Graphwalks BFS >128k: 84.2%.

What are the context window sizes for Claude Haiku 5.5 and Gemini 4 Argon?

Claude Haiku 5.5 supports 1.0M tokens and Gemini 4 Argon 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 Gemini 4 Argon?

Key differences include LLM Stats Score (50.0 vs 55.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and Gemini 4 Argon?

Claude Haiku 5.5 is developed by Anthropic and Gemini 4 Argon is developed by Google.

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