token.app › Compare › o3 Pro (batch) vs DeepSeek V4 Flash 0731
o3 Pro (batch) vs DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 is 156× cheaper per token on a blended 3:1 basis. DeepSeek V4 Flash 0731 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| o3 Pro (batch) | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Input $/1M | $10.00 | $0.090 |
| Output $/1M | $40.00 | $0.180 |
| Blended $/1M | $17.50 | $0.113 |
| Context window | 200K | 1.0M |
| Max output | 100K | 384K |
| Released | Jun 2025 | Jul 2026 |
| Licence | Proprietary | Open weights |
Choose o3 Pro (batch) if…
- No clear advantage on the data we hold.
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.113 vs $17.50 blended
- Larger context window (1.0M)
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, o3 Pro (batch) or DeepSeek V4 Flash 0731?
We do not hold independently-run benchmark scores covering both o3 Pro (batch) and DeepSeek V4 Flash 0731, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o3 Pro (batch) cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.113 versus $17.50 per million tokens blended at 3:1 input:output. Input alone: $10.00 vs $0.090. Output alone: $40.00 vs $0.180.
What context windows do o3 Pro (batch) and DeepSeek V4 Flash 0731 have?
o3 Pro (batch): 200,000 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes o3 Pro (batch) and DeepSeek V4 Flash 0731?
o3 Pro (batch) is made by OpenAI. DeepSeek V4 Flash 0731 is made by DeepSeek.