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GPT 5.1 Codex Max vs Gemini 4 Argon

At a glance

Extended-context coding model for large codebase operations.

400K ctx$1.25/$10.00 per M

Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents.

1.0M ctx$2.00/$10.00 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Cheaper14%
Agentic
Terminal Tasks60.4%Task Horizon3.7h
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Agentic
Terminal Tasks—Task Horizon—
Specs
400K
Context
128K
Max output
Dec 2025
Released
1.0M
Context
66K
Max output
Oct 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input38%$1.25/M tokens
Output$10.00/M tokens
Cache read$0.13/M tokens
Web search29%$0.01/search
Live pricing, shown before you run
Input$2.00/M tokens
Output$10.00/M tokens
Reasoning$10.00/M tokens
Cache read20%$0.10/M tokens
Cache write$0.19/M tokens
Image input$2.00/M tokens
Audio input$2.00/M tokens
Web search$0.01/search
Chat with GPT 5.1 Codex MaxGo to model
Chat with Gemini 4 ArgonGo to model
Frequently Asked Questions: GPT 5.1 Codex Max vs Gemini 4 Argon▼

Which is better, GPT 5.1 Codex Max or Gemini 4 Argon?

▼

Both GPT 5.1 Codex Max and Gemini 4 Argon are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, GPT 5.1 Codex Max or Gemini 4 Argon?

▼

GPT 5.1 Codex Max has a lower blended cost. GPT 5.1 Codex Max: $1.25 input / $10.00 output. Gemini 4 Argon: $2.00 input / $10.00 output.

Which has a larger context window, GPT 5.1 Codex Max or Gemini 4 Argon?

▼

Gemini 4 Argon has a larger context window: GPT 5.1 Codex Max supports 400K tokens vs Gemini 4 Argon at 1M tokens.

Do both GPT 5.1 Codex Max and Gemini 4 Argon support vision?

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Yes, both GPT 5.1 Codex Max and Gemini 4 Argon support vision/image input.

What are the key differences between GPT 5.1 Codex Max and Gemini 4 Argon?

▼

GPT 5.1 Codex Max and Gemini 4 Argon have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GPT 5.1 Codex Max and Gemini 4 Argon for free on idapt.app to see which performs better for your specific needs.

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