Claude Opus 4 vs Together Mistral Small 3

Performance benchmarks + pricing comparison — updated April 2026

Claude Opus 4

Anthropic

Anthropic's most powerful model. Best for complex reasoning and challenging coding tasks.

Input	$15.00/M
Output	$75.00/M
Context	200K tokens
Best For	Complex architecture decisions, debugging hard bugs, research
Benchmark	86/100

Together Mistral Small 3

Together AI

Mistral Small 3 via Together AI. Efficient mid-size model for general tasks.

Input	$0.800/M
Output	$0.800/M
Context	32K tokens
Best For	General text tasks, chat, summarization

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

Scenario	Claude Opus 4	Together Mistral Small 3	Savings
Small Script (1K lines)	$3.08	$0.05	Together Mistral Small 3 saves $3.03 (98%)
Medium Feature (10K lines)	$23.29	$0.44	Together Mistral Small 3 saves $22.85 (98%)
Large Project (50K lines)	$116.44	$2.20	Together Mistral Small 3 saves $114.24 (98%)
Code Review (5K lines)	$6.02	$0.16	Together Mistral Small 3 saves $5.86 (97%)

Verdict

Together Mistral Small 3 wins on both price and performance — $0.800/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models

Claude Sonnet 4

Anthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.

$3.00/M input $15.00/M output ~$4.66 per medium feature

Claude 3.5 Sonnet

Previous generation Sonnet. Still excellent for coding tasks at the same price point.

$3.00/M input $15.00/M output ~$4.66 per medium feature

Claude 3.5 Haiku

Fast, cost-effective model for high-volume tasks. Great for code review and simple queries.

$0.800/M input $4.00/M output ~$1.24 per medium feature

Claude 3 Opus

First generation Opus. Highest reasoning capability in the Claude 3 family.

$15.00/M input $75.00/M output ~$20.25 per medium feature

Claude 3 Sonnet

First generation Sonnet. Balanced performance for general tasks.

$3.00/M input $15.00/M output ~$4.05 per medium feature

Claude 3 Haiku

Cheapest Claude model. Fast responses for simple tasks and basic coding.

$0.250/M input $1.25/M output ~$0.34 per medium feature