token.app › Compare › o3 (batch) vs Claude Sonnet 5
o3 (batch) vs Claude Sonnet 5
o3 (batch) is 2.3× 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
| o3 (batch) | Claude Sonnet 5 | |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Input $/1M | $1.00 | $2.00 |
| Output $/1M | $4.00 | $10.00 |
| Blended $/1M | $1.75 | $4.00 |
| Context window | 200K | 1M |
| Max output | 100K | 128K |
| Released | Apr 2025 | Jun 2026 |
| Licence | Proprietary | Proprietary |
Choose o3 (batch) if…
- Costs less per token — $1.75 vs $4.00 blended
Choose Claude Sonnet 5 if…
- Larger context window (1M)
- Newer model (released Jun 2026)
FAQ
Which is better, o3 (batch) or Claude Sonnet 5?
We do not hold independently-run benchmark scores covering both o3 (batch) and Claude Sonnet 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o3 (batch) cheaper than Claude Sonnet 5?
o3 (batch) is cheaper: $1.75 versus $4.00 per million tokens blended at 3:1 input:output. Input alone: $1.00 vs $2.00. Output alone: $4.00 vs $10.00.
What context windows do o3 (batch) and Claude Sonnet 5 have?
o3 (batch): 200,000 tokens. Claude Sonnet 5: 1,000,000 tokens.
Who makes o3 (batch) and Claude Sonnet 5?
o3 (batch) is made by OpenAI. Claude Sonnet 5 is made by Anthropic.