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Mistral Small 3.1 vs Gemini 3.8 Flash

At a glance

Previous Mistral Small with vision support and 128K context.

128K ctx$0.35/$0.55 per M

Google's most intelligent Flash model, with significant gains over 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

1.0M ctx$0.75/$3.75 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
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper73%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Specs
128K
Context
64K
Max output
Mar 2025
Released
1.0M
Context
66K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input53%$0.35/M tokens
Output85%$0.55/M tokens
Live pricing, shown before you run
Input$0.75/M tokens
Output$3.75/M tokens
Reasoning$3.75/M tokens
Cache read$0.07/M tokens
Cache write$0.04/M tokens
Image input$0.75/M tokens
Audio input$0.75/M tokens
Web search$0.01/search
Chat with Mistral Small 3.1Go to model
Chat with Gemini 3.8 FlashGo to model
Frequently Asked Questions: Mistral Small 3.1 vs Gemini 3.8 Flash▼

Which is better, Mistral Small 3.1 or Gemini 3.8 Flash?

▼

Both Mistral Small 3.1 and Gemini 3.8 Flash 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, Mistral Small 3.1 or Gemini 3.8 Flash?

▼

Mistral Small 3.1 has a lower blended cost. Mistral Small 3.1: $0.35 input / $0.55 output. Gemini 3.8 Flash: $0.75 input / $3.75 output.

Which has a larger context window, Mistral Small 3.1 or Gemini 3.8 Flash?

▼

Gemini 3.8 Flash has a larger context window: Mistral Small 3.1 supports 128K tokens vs Gemini 3.8 Flash at 1M tokens.

Do both Mistral Small 3.1 and Gemini 3.8 Flash support vision?

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Yes, both Mistral Small 3.1 and Gemini 3.8 Flash support vision/image input.

What are the key differences between Mistral Small 3.1 and Gemini 3.8 Flash?

▼

Key differences: Mistral Small 3.1 is significantly cheaper; only Gemini 3.8 Flash offers extended reasoning mode. 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 Mistral Small 3.1 and Gemini 3.8 Flash for free on idapt.app to see which performs better for your specific needs.

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