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Gemini 3.1 Flash-Lite vs Mistral Small 4

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

Gemini 3.1 Flash-Lite Cost
$0.55
Mistral Small 4 Cost
$0.27
Mistral Small 4 is 51% cheaper
FeatureGemini 3.1 Flash-LiteMistral Small 4
ProviderGoogleMistral
Input Price (1M)$0.25$0.15
Output Price (1M)$1.50$0.60
Context Window1,000,000131,000

Verdict

Gemini 3.1 Flash-Lite costs $0.25 per 1M input tokens and $1.50 per 1M output tokens. Mistral Small 4 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens. Mistral Small 4 is 40% cheaper on input tokens than Gemini 3.1 Flash-Lite. For output tokens, Mistral Small 4 is the more affordable option at $0.60/1M vs $1.50.

On context window, Gemini 3.1 Flash-Lite supports 1,000,000 tokens — meaning it can fit more conversation history, documents, or code in a single request. This matters for RAG pipelines, long document analysis, and agentic workflows where context builds up over many turns.

When to choose Gemini 3.1 Flash-Lite

  • ✓ You need a larger context window (1,000,000 tokens)
  • ✓ You are already integrated with Google

When to choose Mistral Small 4

  • ✓ You need the lowest input token cost ($ 0.15/1M)
  • ✓ Your workload is output-heavy — Mistral Small 4 generates text cheaper
  • ✓ You are already integrated with Mistral

Use the calculator above to simulate your specific workload and find the exact break-even point. For most applications, the cheapest model is the one that minimises your total monthly bill given your input-to-output token ratio.

Frequently Asked Questions

Is Gemini 3.1 Flash-Lite cheaper than Mistral Small 4?

Mistral Small 4 is cheaper on input tokens at $0.15/1M vs $0.25/1M for Gemini 3.1 Flash-Lite — a 40% saving.

What is the context window of Gemini 3.1 Flash-Lite vs Mistral Small 4?

Gemini 3.1 Flash-Lite has a 1,000,000-token context window. Mistral Small 4 has a 131,000-token context window. Gemini 3.1 Flash-Lite supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: Gemini 3.1 Flash-Lite or Mistral Small 4?

The best choice depends on your use case. For cost efficiency on input tokens, Mistral Small 4 is the cheaper option. For maximum context length, Gemini 3.1 Flash-Lite supports 1,000,000 tokens. Use the comparison table above to find the right fit for your workload.