gpt-oss-20b vs Amazon Nova Pro
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
OpenAI · Aug 2025
The small gpt-oss variant that runs on a 16GB consumer GPU or laptop — local reasoning for everyone, Apache 2.0 licensed.
Amazon · Dec 2024
AWS's house multimodal model — chosen for Bedrock-native integration and AWS billing more than for benchmark wins.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: gpt-oss-20b works out roughly 16x cheaper per blended million tokens. Amazon Nova Pro also takes 300K of context versus 131K for gpt-oss-20b. And gpt-oss-20b is open-weights (Apache 2.0), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
Specs & pricing
| gpt-oss-20b | Amazon Nova Pro | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $0.05 | $0.8 |
| Output price / 1M | $0.2 | $3.2 |
| Context window | 131K | 300K |
| Max output | 131K | 10K |
| Open weights | yes (Apache 2.0) | no |
| Reasoning model | yes | no |
| Multimodal input | text | text, image, video |
| Knowledge cutoff | Jun 2024 | Oct 2024 |
| Released | Aug 2025 | Dec 2024 |
| Example monthly cost* | $0.8 | $12.80 |
* 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, gpt-oss-20b or Amazon Nova Pro?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: gpt-oss-20b works out roughly 16x cheaper per blended million tokens. Amazon Nova Pro also takes 300K of context versus 131K for gpt-oss-20b. And gpt-oss-20b is open-weights (Apache 2.0), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
- Which is cheaper, gpt-oss-20b or Amazon Nova Pro?
- gpt-oss-20b costs $0.05/$0.2 per million input/output tokens, while Amazon Nova Pro costs $0.8/$3.2. For a typical workload of 10M input and 1.5M output tokens per month, that's $0.8 versus $12.80.
- Which model is better for coding, gpt-oss-20b or Amazon Nova Pro?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.