Mistral API Pricing 2026: Large 3, Medium 3.5, and Small 4 Costs

Mistral’s current API lineup has changed substantially. Mistral Large 3 now costs $0.50/$1.50, Medium 3.5 is the balanced tier, and Small 4 is the current low-cost route. Medium 3 is legacy, while Small 3.1 retired on November 30, 2025.

Current Mistral Prices

Model	Input / 1M	Output / 1M	Context	Best Fit
Mistral Large 3	$0.50	$1.50	128K	Higher-quality general and multimodal tasks
Mistral Medium 3.5	$1.50	$7.50	128K	Balanced production workflows
Mistral Small 4	$0.10	$0.30	128K	High-volume low-cost routing

Mistral Large 3’s price cut makes it cheaper than Medium 3.5 on raw tokens. Model selection should therefore be based on task quality and latency tests rather than tier names alone.

Retired and Legacy Models

• Mistral Small 3.1 retired on November 30, 2025. Use Small 4.
• Mistral Medium 3 is legacy and scheduled for retirement on August 31, 2026. Use Medium 3.5.

Monthly Cost Examples

Daily Usage	Large 3	Medium 3.5	Small 4
100K input + 50K output	$3.75	$15.75	$0.75
1M input + 500K output	$37.50	$157.50	$7.50
10M input + 5M output	$375	$1,575	$75

Use Small 4 for extraction, classification, formatting, and simple tool calls. Evaluate Large 3 for higher-quality work. Use Medium 3.5 only where your evaluations show it provides a meaningful workflow advantage.

Use the AI Model Pricing Calculator for your token mix.

Official sources checked: Mistral pricing and Mistral models overview.