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Gemini 4 Argon vs GPT-5.5 Pro

Gemini 4 Argon leads the LLM Stats Score 55.1 to 45.5.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 4 Argon leads the overall LLM Stats Score 55.1 to 45.5, ranking #4 overall.

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

Choose Gemini 4 Argon

  • overall performance matters — it scores 55.1 and ranks #4 on LLM Stats
  • you want the most recent training data — it shipped Sep 2026

Choose GPT-5.5 Pro

  • you want predictable pricing at $30.00/M input and $180.00/M output

At a glance

The differences that matter most.

Gemini 4 Argon
Google
GPT-5.5 Pro
OpenAI
Core performance indexes
LLM Stats Score
55.1
#4
45.5
#36
Reasoning
52.4
#7
45.4
#34
Agents
40.5
#4
30.2
#39
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$30.00 / M
Output price
— / M
$180.00 / M
Context window
—
1,050,000

Individual benchmarks

19 reported for Gemini 4 Argon · 5 for GPT-5.5 Pro

No common benchmarks found

Gemini 4 Argon and GPT-5.5 Prodon'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 GPT-5.5 Pro specifies input context (1,050,000 tokens). Only GPT-5.5 Pro specifies output context (128,000 tokens).

Google
Gemini 4 Argon
Input- tokens
Output- tokens
OpenAI
GPT-5.5 Pro
Input1,050,000 tokens
Output128,000 tokens
Thu Oct 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Argon and GPT-5.5 Pro support multimodal inputs.

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

Gemini 4 Argon

Text
Images
Audio
Video

GPT-5.5 Pro

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.

Gemini 4 Argon

Proprietary

Closed source

GPT-5.5 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Argon was released on 2026-09-30, while GPT-5.5 Pro was released on 2026-04-23.

Gemini 4 Argon is 5 months newer than GPT-5.5 Pro.

Gemini 4 Argon

Sep 30, 2026

1 weeks ago

5mo newer
GPT-5.5 Pro

Apr 23, 2026

5 months ago

Knowledge Cutoff

When training data ends

GPT-5.5 Pro has a documented knowledge cutoff of 2025-12-01, while Gemini 4 Argon's cutoff date is not specified.

We can confirm GPT-5.5 Pro's training data extends to 2025-12-01, but cannot make a direct comparison without Gemini 4 Argon's cutoff date.

Gemini 4 Argon

—

GPT-5.5 Pro

Dec 2025

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

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

Gemini 4 Argon
✓ Preferred
GPT-5.5 Pro
Open in Playground

FAQ

Common questions about Gemini 4 Argon vs GPT-5.5 Pro.

Which is better, Gemini 4 Argon or GPT-5.5 Pro?

Gemini 4 Argon leads the LLM Stats Score 55.1 to 45.5. Gemini 4 Argon is made by Google and GPT-5.5 Pro is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 4 Argon compare to GPT-5.5 Pro in benchmarks?

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%. GPT-5.5 Pro scores BrowseComp: 90.1%, GDPval-MM: 82.3%, Humanity's Last Exam: 57.2%, FrontierMath: 39.6%, GeneBench: 33.2%.

What are the context window sizes for Gemini 4 Argon and GPT-5.5 Pro?

Gemini 4 Argon supports an unknown number of tokens and GPT-5.5 Pro supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 4 Argon and GPT-5.5 Pro?

Key differences include LLM Stats Score (55.1 vs 45.5). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Argon and GPT-5.5 Pro?

Gemini 4 Argon is developed by Google and GPT-5.5 Pro is developed by OpenAI.

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