Claude Opus 4 vs o1
Side-by-side API pricing and capability comparison
Anthropic
Claude Opus 4
Anthropic's most powerful model — best for complex reasoning, research, and advanced coding tasks.
Input /1M
$15.00
Output /1M
$75.00
Context
200K
Tier
frontier
Prompt caching: $1.50/1M input
Full Claude Opus 4 pricing →OpenAI
o1
OpenAI's reasoning model — designed for complex STEM, coding, and multi-step logic.
Input /1M
$15.00
Output /1M
$60.00
Context
200K
Tier
frontier
Prompt caching: $7.50/1M input
Full o1 pricing →Monthly Cost Comparison
| Usage scenario | Claude Opus 4 | o1 | Cheaper by |
|---|---|---|---|
Light usage 50K in + 20K out /day | $67.50 | $58.50 | o1 13% cheaper |
Medium usage 500K in + 150K out /day | $562.50 | $495.00 | o1 12% cheaper |
Heavy usage 3000K in + 1000K out /day | $3600.00 | $3150.00 | o1 13% cheaper |
Feature Comparison
When to Use Each
Choose Claude Opus 4 when:
- You prefer Anthropic's ecosystem and tooling
Choose o1 when:
- You prefer OpenAI's ecosystem and tooling
More Comparisons
Claude Sonnet 4 vs GPT-4o
$3.00 vs $2.50 input →
Claude Sonnet 4 vs Gemini 2.5 Pro
$3.00 vs $1.25 input →
Claude Haiku 4 vs GPT-4o mini
$0.800 vs $0.150 input →
Claude Haiku 4 vs Gemini 2.0 Flash
$0.800 vs $0.100 input →
Claude Opus 4 vs GPT-4 Turbo
$15.00 vs $10.00 input →
GPT-4o vs Gemini 2.5 Pro
$2.50 vs $1.25 input →