DeepSeek V4 Flash 0731 (Thinking) vs gpt-oss-120b (batch)
DeepSeek V4 Flash 0731 (Thinking) is cheaper on output tokens, while DeepSeek V4 Flash 0731 (Thinking) offers a larger context window. Choose DeepSeek V4 Flash 0731 (Thinking) or gpt-oss-120b (batch) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V4 Flash 0731 (Thinking) | gpt-oss-120b (batch) |
|---|---|---|
| Provider | NanoGPT | OpenAI |
| Input / 1M tokens | $0.04 | $0.03 |
| Output / 1M tokens | $0.13 | $0.14 |
| Context window | 1M | 131K |
| Parameters | — | 117B |
| Open weights | Yes | Yes |
| Released | Jul 2026 | Aug 2025 |
| SWE-bench Verified score | — | 26.0 |
| GPQA Diamond score | — | 75.8 |
| LMArena (Chatbot Arena) Elo score | — | 1365 |
| Epoch Capabilities Index score | — | 140 |
FAQ
Is DeepSeek V4 Flash 0731 (Thinking) or gpt-oss-120b (batch) cheaper?
DeepSeek V4 Flash 0731 (Thinking) is cheaper on output tokens ($0.13 vs $0.14 per 1M).
Which has the larger context window, DeepSeek V4 Flash 0731 (Thinking) or gpt-oss-120b (batch)?
DeepSeek V4 Flash 0731 (Thinking) has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.