DeepSeek R1 (0528) vs gpt-oss-120b
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
DeepSeek R1 (0528)
67.8DeepSeek · May 2025
The open reasoning model that started it all — RL-trained chain-of-thought, MIT licensed, and a research landmark.
gpt-oss-120b
OpenAI · Aug 2025
OpenAI's open-weights MoE reasoning model under Apache 2.0 — near o4-mini quality, runnable on a single 80GB GPU.
The verdict
gpt-oss-120b wins 2 of the 3 benchmarks these models share, against 1 for DeepSeek R1 (0528). On price the gap is dramatic: gpt-oss-120b works out roughly 4.8x cheaper per blended million tokens. gpt-oss-120b also takes 131K of context versus 128K for DeepSeek R1 (0528).
Benchmark head-to-head 1–2
Specs & pricing
| DeepSeek R1 (0528) | gpt-oss-120b | |
|---|---|---|
| modhub Index | 67.8 | — |
| Input price / 1M | $0.55 | $0.1 |
| Output price / 1M | $2.19 | $0.5 |
| Context window | 128K | 131K |
| Max output | 64K | 131K |
| Open weights | yes (MIT) | yes (Apache 2.0) |
| Reasoning model | yes | yes |
| Multimodal input | text | text |
| Knowledge cutoff | Mar 2025 | Jun 2024 |
| Released | May 2025 | Aug 2025 |
| Example monthly cost* | $8.79 | $1.75 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, DeepSeek R1 (0528) or gpt-oss-120b?
- gpt-oss-120b wins 2 of the 3 benchmarks these models share, against 1 for DeepSeek R1 (0528). On price the gap is dramatic: gpt-oss-120b works out roughly 4.8x cheaper per blended million tokens. gpt-oss-120b also takes 131K of context versus 128K for DeepSeek R1 (0528).
- Which is cheaper, DeepSeek R1 (0528) or gpt-oss-120b?
- DeepSeek R1 (0528) costs $0.55/$2.19 per million input/output tokens, while gpt-oss-120b costs $0.1/$0.5. For a typical workload of 10M input and 1.5M output tokens per month, that's $8.79 versus $1.75.
- Which model is better for coding, DeepSeek R1 (0528) or gpt-oss-120b?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.
More comparisons
DeepSeek R1 (0528) vs GPT-5.5gpt-oss-120b vs GPT-5.5DeepSeek R1 (0528) vs GPT-5.2gpt-oss-120b vs GPT-5.2DeepSeek R1 (0528) vs GPT-5.1gpt-oss-120b vs GPT-5.1DeepSeek R1 (0528) vs GPT-5gpt-oss-120b vs GPT-5DeepSeek R1 (0528) vs GPT-5 minigpt-oss-120b vs GPT-5 miniDeepSeek R1 (0528) vs OpenAI o3gpt-oss-120b vs OpenAI o3