GPT-5.1 vs Amazon Nova Pro
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
GPT-5.1
59.6OpenAI · Nov 2025
A November 2025 update to GPT-5 with adaptive reasoning that spends thinking tokens only when a task needs them.
Amazon Nova Pro
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. Amazon Nova Pro is about 2.5x cheaper per blended million tokens (3:1 input:output mix). GPT-5.1 also takes 400K of context versus 300K for Amazon Nova Pro.
Specs & pricing
| GPT-5.1 | Amazon Nova Pro | |
|---|---|---|
| modhub Index | 59.6 | — |
| Input price / 1M | $1.25 | $0.8 |
| Output price / 1M | $10 | $3.2 |
| Context window | 400K | 300K |
| Max output | 128K | 10K |
| Open weights | no | no |
| Reasoning model | yes | no |
| Multimodal input | text, image | text, image, video |
| Knowledge cutoff | Sep 2024 | Oct 2024 |
| Released | Nov 2025 | Dec 2024 |
| Example monthly cost* | $27.50 | $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-5.1 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. Amazon Nova Pro is about 2.5x cheaper per blended million tokens (3:1 input:output mix). GPT-5.1 also takes 400K of context versus 300K for Amazon Nova Pro.
- Which is cheaper, GPT-5.1 or Amazon Nova Pro?
- GPT-5.1 costs $1.25/$10 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 $27.50 versus $12.80.
- Which model is better for coding, GPT-5.1 or Amazon Nova Pro?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.