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o4-mini vs Ministral 3 8B

Detailed pricing comparison and cost analysis.

Updated September 2026

Cost Simulator

o4-mini Cost
$1.98
Ministral 3 8B Cost
$0.18
Ministral 3 8B is 91% cheaper
Featureo4-miniMinistral 3 8B
ProviderOpenAIMistral
Input Price (1M)$1.10$0.15
Output Price (1M)$4.40$0.15
Context Window200,000262,000

Verdict

o4-mini costs $1.10 per 1M input tokens and $4.40 per 1M output tokens. Ministral 3 8B costs $0.15 per 1M input tokens and $0.15 per 1M output tokens. Ministral 3 8B is 86% cheaper on input tokens than o4-mini. For output tokens, Ministral 3 8B is the more affordable option at $0.15/1M vs $4.40.

On context window, Ministral 3 8B supports 262,000 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 o4-mini

  • ✓ You are already integrated with OpenAI

When to choose Ministral 3 8B

  • ✓ You need the lowest input token cost ($ 0.15/1M)
  • ✓ Your workload is output-heavy — Ministral 3 8B generates text cheaper
  • ✓ You need a larger context window (262,000 tokens)
  • ✓ 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 o4-mini cheaper than Ministral 3 8B?

Ministral 3 8B is cheaper on input tokens at $0.15/1M vs $1.10/1M for o4-mini — a 86% saving.

What is the context window of o4-mini vs Ministral 3 8B?

o4-mini has a 200,000-token context window. Ministral 3 8B has a 262,000-token context window. Ministral 3 8B supports the larger context, suitable for longer documents and agentic workflows.

Which model is better: o4-mini or Ministral 3 8B?

The best choice depends on your use case. For cost efficiency on input tokens, Ministral 3 8B is the cheaper option. For maximum context length, Ministral 3 8B supports 262,000 tokens. Use the comparison table above to find the right fit for your workload.