token.app › Compare › o1-pro vs Claude Sonnet 5

o1-pro vs Claude Sonnet 5

Claude Sonnet 5 is 66× cheaper per token on a blended 3:1 basis. Claude Sonnet 5 accepts the larger context window (1M).

Head to head
Blended price uses a 3:1 input:output mix
o1-proClaude Sonnet 5
ProviderOpenAIAnthropic
Input $/1M$150.00$2.00
Output $/1M$600.00$10.00
Blended $/1M$262.50$4.00
Context window200K1M
Max output100K128K
ReleasedMar 2025Jun 2026
LicenceProprietaryProprietary
Choose o1-pro if…
  • No clear advantage on the data we hold.
Choose Claude Sonnet 5 if…
  • Costs less per token — $4.00 vs $262.50 blended
  • Larger context window (1M)
  • Newer model (released Jun 2026)
FAQ
Which is better, o1-pro or Claude Sonnet 5?
We do not hold independently-run benchmark scores covering both o1-pro and Claude Sonnet 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o1-pro cheaper than Claude Sonnet 5?
Claude Sonnet 5 is cheaper: $4.00 versus $262.50 per million tokens blended at 3:1 input:output. Input alone: $150.00 vs $2.00. Output alone: $600.00 vs $10.00.
What context windows do o1-pro and Claude Sonnet 5 have?
o1-pro: 200,000 tokens. Claude Sonnet 5: 1,000,000 tokens.
Who makes o1-pro and Claude Sonnet 5?
o1-pro is made by OpenAI. Claude Sonnet 5 is made by Anthropic.
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