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Mistral Medium 3 vs Gemini 3.1 Flash-Lite

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

Mistral Medium 3 Cost
$0.80
Gemini 3.1 Flash-Lite Cost
$0.55
Gemini 3.1 Flash-Lite is 31% cheaper
FeatureMistral Medium 3Gemini 3.1 Flash-Lite
ProviderMistralGoogle
Input Price (1M)$0.40$0.25
Output Price (1M)$2.00$1.50
Context Window131,0001,000,000

Verdict

Mistral Medium 3 costs $0.40 per 1M input tokens and $2.00 per 1M output tokens. Gemini 3.1 Flash-Lite costs $0.25 per 1M input tokens and $1.50 per 1M output tokens. Gemini 3.1 Flash-Lite is 38% cheaper on input tokens than Mistral Medium 3. For output tokens, Gemini 3.1 Flash-Lite is the more affordable option at $1.50/1M vs $2.00.

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 Mistral Medium 3

  • ✓ You are already integrated with Mistral

When to choose Gemini 3.1 Flash-Lite

  • ✓ You need the lowest input token cost ($ 0.25/1M)
  • ✓ Your workload is output-heavy — Gemini 3.1 Flash-Lite generates text cheaper
  • ✓ You need a larger context window (1,000,000 tokens)
  • ✓ You are already integrated with Google

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 Mistral Medium 3 cheaper than Gemini 3.1 Flash-Lite?

Gemini 3.1 Flash-Lite is cheaper on input tokens at $0.25/1M vs $0.40/1M for Mistral Medium 3 — a 38% saving.

What is the context window of Mistral Medium 3 vs Gemini 3.1 Flash-Lite?

Mistral Medium 3 has a 131,000-token context window. Gemini 3.1 Flash-Lite has a 1,000,000-token context window. Gemini 3.1 Flash-Lite supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: Mistral Medium 3 or Gemini 3.1 Flash-Lite?

The best choice depends on your use case. For cost efficiency on input tokens, Gemini 3.1 Flash-Lite 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.