Claude Sonnet 4.5 vs Amazon Nova Pro
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Claude Sonnet 4.5
65.5Anthropic · Sep 2025
The model that made 30-hour autonomous coding sessions real — 77.2% SWE-bench Verified and a 1M-token context beta at $3/$15.
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
Claude Sonnet 4.5 wins 1 of the 1 benchmarks these models share, against 0 for Amazon Nova Pro. On price the gap is dramatic: Amazon Nova Pro works out roughly 4.3x cheaper per blended million tokens. Amazon Nova Pro also takes 300K of context versus 200K for Claude Sonnet 4.5.
Benchmark head-to-head 1–0
Specs & pricing
| Claude Sonnet 4.5 | Amazon Nova Pro | |
|---|---|---|
| modhub Index | 65.5 | — |
| Input price / 1M | $3 | $0.8 |
| Output price / 1M | $15 | $3.2 |
| Context window | 200K | 300K |
| Max output | 64K | 10K |
| Open weights | no | no |
| Reasoning model | yes | no |
| Multimodal input | text, image | text, image, video |
| Knowledge cutoff | Jan 2025 | Oct 2024 |
| Released | Sep 2025 | Dec 2024 |
| Example monthly cost* | $52.50 | $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, Claude Sonnet 4.5 or Amazon Nova Pro?
- Claude Sonnet 4.5 wins 1 of the 1 benchmarks these models share, against 0 for Amazon Nova Pro. On price the gap is dramatic: Amazon Nova Pro works out roughly 4.3x cheaper per blended million tokens. Amazon Nova Pro also takes 300K of context versus 200K for Claude Sonnet 4.5.
- Which is cheaper, Claude Sonnet 4.5 or Amazon Nova Pro?
- Claude Sonnet 4.5 costs $3/$15 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 $52.50 versus $12.80.
- Which model is better for coding, Claude Sonnet 4.5 or Amazon Nova Pro?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.
More comparisons
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