Comprehensive side-by-side LLM comparison
o4-mini leads with 31.0% higher average benchmark score. Claude 3 Opus offers 100.0K more tokens in context window than o4-mini. o4-mini is $84.50 cheaper per million tokens. Claude 3 Opus is available on 3 providers. Overall, o4-mini is the stronger choice for coding tasks.
Anthropic
Claude 3 Opus was developed as the most capable model in the Claude 3 family, designed to set new industry benchmarks across a wide range of cognitive tasks. Built to handle complex analysis and extended tasks requiring deep reasoning, it balanced frontier intelligence with careful safety considerations, representing the flagship tier of the Claude 3 generation.
OpenAI
o4-mini was created as part of the next generation of OpenAI's reasoning models, designed to continue advancing the balance between analytical capability and operational efficiency. Built to bring cutting-edge reasoning techniques to applications requiring quick turnaround, it represents the evolution of compact reasoning-focused models.
1 year newer

Claude 3 Opus
Anthropic
2024-02-29

o4-mini
OpenAI
2025-04-16
Cost per million tokens (USD)

Claude 3 Opus

o4-mini
Context window and performance specifications
Average performance across 1 common benchmarks

Claude 3 Opus

o4-mini
o4-mini
2024-05-31
Available providers and their performance metrics

Claude 3 Opus
Anthropic
Bedrock

Claude 3 Opus

o4-mini

Claude 3 Opus

o4-mini

o4-mini
OpenAI