API cost decision in 10 seconds

Mistral Small 4 vs Claude Opus 4.6

Pick Mistral Small 4 for lower cost; pick Claude Opus 4.6 only if the larger context window matters more.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Mistral Small 4 for lower cost; pick Claude Opus 4.6 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Mistral Small 4 is estimated at $0.45 vs $17.5 for Claude Opus 4.6, saving $17.05 (97.4% lower).

Cost-first pickMistral Small 4
Context-first pickClaude Opus 4.6
Sample savings$17.0597.4%
10x traffic gap$170.5

Claude Opus 4.6 has more context, but Mistral Small 4 saves $17.05 on the standard workload. At 10x that traffic, the same price gap is about $170.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Mistral Small 4 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickMistral Small 4Claude Opus 4.6
Input-heavy / RAG5M input + 500K outputMistral Small 4$1.05$37.5
Balanced workload1M input + 1M outputMistral Small 4$0.75$30
Output-heavy chatbot1M input + 5M outputMistral Small 4$3.15$130
Cheaper input Mistral Small 4 $0.15 vs $5 / 1M

Mistral Small 4 is $4.85 cheaper per 1M input tokens (97% lower; 33.3x difference).

Cheaper output Mistral Small 4 $0.6 vs $25 / 1M

Mistral Small 4 is $24.4 cheaper per 1M output tokens (97.6% lower; 41.7x difference).

Larger context Claude Opus 4.6 262.14K vs 1M

Claude Opus 4.6 has 737.86K more context (3.81x larger).

Sample workload Mistral Small 4 $0.45 vs $17.5

Mistral Small 4 is $17.05 cheaper on the standard workload (97.4% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Mistral Small 4 Calculating… Estimated API cost
Claude Opus 4.6 Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Mistral Small 4 has the lower input price; Mistral Small 4 has the lower output price; Claude Opus 4.6 offers the larger context window. For the 1M input plus 500K output sample, Mistral Small 4 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.45 for Mistral Small 4 and $17.5 for Claude Opus 4.6.

Best Fit

Choose Mistral Small 4 when you care most about lower input-token price, and lower output-token price.

Choose Claude Opus 4.6 when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Mistral Small 4 is estimated at $0.45 vs $17.5 for Claude Opus 4.6, saving $17.05 (97.4% lower).
  • Mistral Small 4 is $17.05 cheaper on the standard workload (97.4% lower).
  • Mistral Small 4 is $4.85 cheaper per 1M input tokens (97% lower; 33.3x difference).
  • Mistral Small 4 is $24.4 cheaper per 1M output tokens (97.6% lower; 41.7x difference).
  • Claude Opus 4.6 has 737.86K more context (3.81x larger).
Head-to-Head Specs
FeatureMistral Small 4
(Mistral)		Claude Opus 4.6
(Anthropic)
Input Price
prompt tokens per 1M		$0.15$5
Completion Price
per 1M tokens		$0.6$25
Sample Workload Cost
1M input + 500K output		$0.45$17.5
Context Window262.14K1M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionMistral Small 4On the standard 1M input plus 500K output workload, Mistral Small 4 is estimated at $0.45 vs $17.5 for Claude Opus 4.6, saving $17.05 (97.4% lower).
High-volume input processingMistral Small 4Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsMistral Small 4Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workClaude Opus 4.6A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Mistral Nemo can replace Mistral Small 4 when lower sample workload cost matters most: $0.04.
  • Mistral Small 3 can replace Mistral Small 4 when lower sample workload cost matters most: $0.09.
  • Ministral 3 3B 2512 can replace Mistral Small 4 when lower sample workload cost matters most: $0.15.
  • Mistral Small 3.2 24B can replace Mistral Small 4 when lower sample workload cost matters most: $0.17.
Popular competitors
  • No popular competitor is currently available.

Cheaper alternatives

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

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Provider catalogs

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Mistral catalog

Review all tracked Mistral models before deciding whether this matchup is the right shortlist.

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Anthropic catalog

Check other Anthropic models with comparable pricing, context, or release timing.

Open Anthropic models
Mistral Small 4

Mistral Small 4 is the next major release in the Mistral Small family, unifying the capabilities of several flagship Mistral models into a single system. It combines strong reasoning from...

Claude Opus 4.6

Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...