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Gemini 3.5 Flash-Lite vs GPT 5.1 Codex Mini

At a glance

Google's high-efficiency model for focused subagent work and multi-agent workflows.

1.0M ctx$0.30/$2.50 per M

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

400K ctx$0.25/$2.00 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
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Agentic
Terminal Tasks—
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-07-10
Cheaper19%
Agentic
Terminal Tasks61.6%
Specs
1.0M
Context
66K
Max output
Jul 2026
Released
400K
Context
100K
Max output
Nov 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.30/M tokens
Output$2.50/M tokens
Reasoning$2.50/M tokens
Cache read$0.03/M tokens
Cache write$0.08/M tokens
Image input$0.30/M tokens
Audio input$0.30/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input17%$0.25/M tokens
Output20%$2.00/M tokens
Cache read17%$0.02/M tokens
Web search29%$0.01/search
Chat with Gemini 3.5 Flash-LiteGo to model
Chat with GPT 5.1 Codex MiniGo to model
Frequently Asked Questions: Gemini 3.5 Flash-Lite vs GPT 5.1 Codex Mini▼

Which is better, Gemini 3.5 Flash-Lite or GPT 5.1 Codex Mini?

▼

Both Gemini 3.5 Flash-Lite and GPT 5.1 Codex Mini 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, Gemini 3.5 Flash-Lite or GPT 5.1 Codex Mini?

▼

GPT 5.1 Codex Mini has a lower blended cost. Gemini 3.5 Flash-Lite: $0.30 input / $2.50 output. GPT 5.1 Codex Mini: $0.25 input / $2.00 output.

Which has a larger context window, Gemini 3.5 Flash-Lite or GPT 5.1 Codex Mini?

▼

Gemini 3.5 Flash-Lite has a larger context window: Gemini 3.5 Flash-Lite supports 1M tokens vs GPT 5.1 Codex Mini at 400K tokens.

Do both Gemini 3.5 Flash-Lite and GPT 5.1 Codex Mini support vision?

▼

Yes, both Gemini 3.5 Flash-Lite and GPT 5.1 Codex Mini support vision/image input.

What are the key differences between Gemini 3.5 Flash-Lite and GPT 5.1 Codex Mini?

▼

Gemini 3.5 Flash-Lite and GPT 5.1 Codex Mini 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 Gemini 3.5 Flash-Lite and GPT 5.1 Codex Mini for free on idapt.app to see which performs better for your specific needs.

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