DeepSeek: DeepSeek V3 vs OpenAI: o3
DeepSeek: DeepSeek V3 is cheaper than OpenAI: o3 by about 91% on a blended (75% input / 25% output) basis. DeepSeek: DeepSeek V3 charges $0.280000 / $0.420000 per 1M input/output tokens; OpenAI: o3 charges $2.000000 / $8.000000.
| Field | DeepSeek: DeepSeek V3 | OpenAI: o3 |
|---|---|---|
| Input $/Mtok | $0.280000 | $2.000000 |
| Output $/Mtok | $0.420000 | $8.000000 |
| Cache read $/Mtok | $0.028000 | $0.500000 |
| Cache write $/Mtok | – | – |
| Input $/Mchar | 0.091836 | 0.563428 |
| Output $/Mchar | 0.137755 | 2.253712 |
| Context window | 163840 | 200000 |
| Tokenizer | deepseek | o200k |
Price history
Same workload, monthly cost
Illustrative monthly cost at 10M tokens/month, split per workload preset. Not a substitute for the calculator, which uses your own volume, cache and batch assumptions.
| Workload | DeepSeek: DeepSeek V3 | OpenAI: o3 |
|---|---|---|
| Coding agent | $2.87 | $23.00 |
| RAG chat | $3.01 | $29.00 |
| Summarisation (batch) | $2.94 | $26.00 |
| Classification | $2.83 | $21.20 |
| Chat assistant | $3.36 | $44.00 |
| Content generation | $3.92 | $68.00 |
Cite this page
DeepSeek: DeepSeek V3 vs OpenAI: o3: $0.280000/$0.420000 vs $2.000000/$8.000000 per 1M tokens, as of 2026-10-04 (Token Barometer, https://tokenbarometer.com/compare/deepseek_deepseek-chat-vs-openai_o3).
DeepSeek: DeepSeek V3 page | OpenAI: o3 page | Open in calculator