Which is cheaper, Claude 4 Sonnet or Mistral Small 3?

Mistral Small 3 is cheaper for the default 10,000 input and 10,000 output token scenario.

What is the context window for Claude 4 Sonnet?

Claude 4 Sonnet supports a context window of 200K.

What is the context window for Mistral Small 3?

Mistral Small 3 supports a context window of 128K.

Model Comparison

v2.0

Price Data Last Verified: March 21, 2026

Claude 4 Sonnet vs Mistral Small 3: AI API Cost Comparison (2026)

This page compares per-token pricing and context limits for Claude 4 Sonnet and Mistral Small 3using a standard scenario of 10,000 input tokens and 10,000 output tokens.

Model A

Claude 4 Sonnet

Anthropic

Input / 1M: $3.00
Output / 1M: $15.00
Context Window: 200K

Model B

Mistral Small 3

Mistral

Input / 1M: $0.10
Output / 1M: $0.30
Context Window: 128K

Cost Breakdown Table

Model	Input Cost	Output Cost	Total Cost
Claude 4 Sonnet	$0.03	$0.15	$0.18
Mistral Small 3	$0.001	$0.003	$0.004

Verdict

High Volume

Best pick: Mistral Small 3 for a 2,000,000 in /2,000,000 out workload.

Low Budget

Best pick: Mistral Small 3 for a 10,000 in /10,000 out request profile.

About the Methodology

Cost estimates are generated from published input and output token rates for each provider. We apply identical token scenarios to both models in this comparison, so the result reflects price differences only. Pricing values are reviewed weekly against official API documentation and updated when changes are verified.

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