DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: o1-pro
Here is how DeepSeek: DeepSeek V4 Flash 0731 and OpenAI: o1-pro compare on specs and pricing. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $150/1M for OpenAI: o1-pro. DeepSeek: DeepSeek V4 Flash 0731 offers the larger context window at 1M tokens.
DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: o1-pro: which should you use?
Choose DeepSeek: DeepSeek V4 Flash 0731 if…
- It sees more real traffic — #1 overall on OpenRouter's weekly ranking.
- Cheaper to read — $0.14 vs $150 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.28 vs $600 per 1M output tokens, the line item that decides generation-heavy costs.
- Bigger context window — 1M vs 200K tokens.
- It is the newer model — released Jul 2026 against Mar 2025.
Choose OpenAI: o1-pro if…
- It accepts image, file input, which DeepSeek: DeepSeek V4 Flash 0731 does not.
Spec Comparison
| Spec | DeepSeek: DeepSeek V4 Flash 0731 | OpenAI: o1-pro |
|---|---|---|
| Author | deepseek | openai |
| Input price (per 1M tokens) | $0.14 | $150 |
| Output price (per 1M tokens) | $0.28 | $600 |
| Context window | 1M | 200K |
| Input modalities | text | text, image, file |
| Output modalities | text | text |
| AA Intelligence | 51.8 | — |
| AA Coding | 69.1 | — |
| AA Agentic | 48.4 | — |
| Released | Jul 2026 | Mar 2025 |
What DeepSeek: DeepSeek V4 Flash 0731 and OpenAI: o1-pro actually cost to run
On a read-heavy job — 1M tokens in, 100K out — DeepSeek: DeepSeek V4 Flash 0731 costs $0.17 and OpenAI: o1-pro costs $210.
Flip the shape — 100K in, 1M out — and it becomes $0.29 for DeepSeek: DeepSeek V4 Flash 0731 versus $615 for OpenAI: o1-pro.
Both figures are the published per-token rates multiplied out; caching and batch discounts are not included.
Usage Rank by Task
| Task | DeepSeek: DeepSeek V4 Flash 0731 | OpenAI: o1-pro |
|---|---|---|
| Overall | #1 | — |
| Memory Extraction | #6 | — |
| Multi-step Planning | #2 | — |
| Tool Dispatch | #2 | — |
| Web Search | #4 | — |
| Agent Workflows | #5 | — |
| Classification & Tagging | #9 | — |
| Debugging | #3 | — |
| DevOps Config | #2 | — |
| File Read/Write | #3 | — |
| Frontend UI | #2 | — |
| Code Implementation | #3 | — |
| Repo Analysis | #3 | — |
| Code Review & Security | #3 | — |
| Shell Execution | #6 | — |
About DeepSeek: DeepSeek V4 Flash 0731 and OpenAI: o1-pro
DeepSeek: DeepSeek V4 Flash 0731
Built by deepseek · released Jul 2026 · 1M-token context
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....
OpenAI: o1-pro
Built by openai · released Mar 2025 · 200K-token context
The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide...
Related comparisons
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- DeepSeek: DeepSeek V4 Flash 0731 vs DeepSeek: DeepSeek V4 Flash 0423
- OpenAI: o1-pro vs Tencent: Hy3
- OpenAI: o1-pro vs OpenAI: GPT-5.6 Luna (batch)
- OpenAI: o1-pro vs DeepSeek: DeepSeek V4 Flash 0423
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FAQ
Which is better, DeepSeek: DeepSeek V4 Flash 0731 or OpenAI: o1-pro?
Here is how DeepSeek: DeepSeek V4 Flash 0731 and OpenAI: o1-pro compare on specs and pricing. DeepSeek: DeepSeek V4 Flash 0731 is cheaper on input tokens at $0.14/1M vs $150/1M for OpenAI: o1-pro. DeepSeek: DeepSeek V4 Flash 0731 offers the larger context window at 1M tokens.
Which is cheaper, DeepSeek: DeepSeek V4 Flash 0731 or OpenAI: o1-pro?
DeepSeek: DeepSeek V4 Flash 0731 is cheaper at $0.14 per 1M input tokens. Output pricing: DeepSeek: DeepSeek V4 Flash 0731 $0.28, OpenAI: o1-pro $600.
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.