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GPT 5.1 Codex Mini vs Gemini 4 Argon

At a glance

Compact coding model for fast, cost-efficient development tasks.

400K ctx$0.25/$2.00 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
Cheaper83%
Agentic
Terminal Tasks61.6%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Agentic
Terminal Tasks—
Specs
400K
Context
128K
Max output
Nov 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
Input88%$0.25/M tokens
Output80%$2.00/M tokens
Cache read70%$0.03/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 read$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 MiniGo to model
Chat with Gemini 4 ArgonGo to model
Frequently Asked Questions: GPT 5.1 Codex Mini vs Gemini 4 Argon▼

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

▼

Both GPT 5.1 Codex Mini 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 Mini or Gemini 4 Argon?

▼

GPT 5.1 Codex Mini has a lower blended cost. GPT 5.1 Codex Mini: $0.25 input / $2.00 output. Gemini 4 Argon: $2.00 input / $10.00 output.

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

▼

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

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

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

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

▼

Key differences: GPT 5.1 Codex Mini is significantly cheaper. Compare full specs on this page.

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 Mini and Gemini 4 Argon for free on idapt.app to see which performs better for your specific needs.

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