Mistral Medium 3.5 vs Claude Sonnet 5.5

Mistral Medium 3.5 (Mistral) costs $1.50 per million input tokens and $7.50 per million output tokens; Claude Sonnet 5.5 (Anthropic) costs $2.00 and $10.00. Mistral Medium 3.5 is 1.3× cheaper for a typical 3:1 input-to-output mix. Claude Sonnet 5.5 has the larger context window (1M vs 262K tokens).

Mistral Medium 3.5Claude Sonnet 5.5
ProviderMistralAnthropic
Input / 1M tokens$1.50$2.00
Output / 1M tokens$7.50$10.00
Cached input / 1M$0.15$0.20
Blended (3:1)$3.00$4.00
Context window262K1M
Max output262K128K
VisionYesYes
Tool useYesYes
ReasoningYesYes
Listed sinceJun 20, 2026Oct 1, 2026

Cost per 1,000 requests

WorkloadMistral Medium 3.5Claude Sonnet 5.5
Chatbot reply2,000 input + 500 output tokens$6.75$9.00
RAG / search answer8,000 input + 700 output tokens$17.25$23.00
Long-document summary100,000 input + 2,000 output tokens$165.00$220.00

Blended price history

Mistral Medium 3.5Claude Sonnet 5.5
$0$1.25$2.50$3.75$5.00Jul 26Aug 26Sep 26Oct 26$3.00$4.00

Blended = (3 × input + output) ÷ 4, per million tokens. Each line starts when the model first appeared in the price list.

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List prices for each provider's own API (USD), taken daily from LiteLLM's public model price list. Batch, caching and committed-use discounts aren't reflected. Price alone says nothing about output quality; check benchmarks and your own evaluations before switching.