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Grok 3 Mini vs Mistral Small 3

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

Grok 3 Mini Cost
$0.40
Mistral Small 3 Cost
$0.05
Mistral Small 3 is 87% cheaper
FeatureGrok 3 MiniMistral Small 3
ProviderxAIMistral
Input Price (1M)$0.30$0.03
Output Price (1M)$0.50$0.11
Context Window131,00033,000

Verdict

Grok 3 Mini costs $0.30 per 1M input tokens and $0.50 per 1M output tokens. Mistral Small 3 costs $0.03 per 1M input tokens and $0.11 per 1M output tokens. Mistral Small 3 is 90% cheaper on input tokens than Grok 3 Mini. For output tokens, Mistral Small 3 is the more affordable option at $0.11/1M vs $0.50.

On context window, Grok 3 Mini supports 131,000 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 Grok 3 Mini

  • ✓ You need a larger context window (131,000 tokens)
  • ✓ You are already integrated with xAI

When to choose Mistral Small 3

  • ✓ You need the lowest input token cost ($ 0.03/1M)
  • ✓ Your workload is output-heavy — Mistral Small 3 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 Grok 3 Mini cheaper than Mistral Small 3?

Mistral Small 3 is cheaper on input tokens at $0.03/1M vs $0.30/1M for Grok 3 Mini — a 90% saving.

What is the context window of Grok 3 Mini vs Mistral Small 3?

Grok 3 Mini has a 131,000-token context window. Mistral Small 3 has a 33,000-token context window. Grok 3 Mini supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: Grok 3 Mini or Mistral Small 3?

The best choice depends on your use case. For cost efficiency on input tokens, Mistral Small 3 is the cheaper option. For maximum context length, Grok 3 Mini supports 131,000 tokens. Use the comparison table above to find the right fit for your workload.