Amazon Nova Pro vs o3
A complete head-to-head: pricing, context window, benchmarks, modality coverage, and openness, with a programmatic verdict synthesized from the underlying data.
Updated
Amazon Nova Pro specs · o3 specs- PriceAmazon Nova Pro
Amazon Nova Pro is roughly 2.5× cheaper on output tokens ($3.20 vs $8.00 per 1M).
- Context windowAmazon Nova Pro
Amazon Nova Pro accepts 300K tokens vs 200K, 1.5× the room for long documents and codebases.
- BenchmarksTie
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores.
- ModalitiesAmazon Nova Pro
Amazon Nova Pro supports 3 modalities (text, vision, video) vs 2 for o3.
- OpennessTie
Both are closed-weight, API-only.
On balance Amazon Nova Pro edges ahead, winning 3 of 5 categories against o3's 0. Amazon Nova Pro is roughly 2.5× cheaper on output tokens ($3.20 vs $8.00 per 1M). Amazon Nova Pro accepts 300K tokens vs 200K, 1.5× the room for long documents and codebases.
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. They differ in modality coverage, Amazon Nova Pro handles text, vision, video while o3 handles text, vision, which can be the deciding factor before you even look at benchmarks. Both are closed-weight, API-only.
o3 is the newer of the two, released 4 months after Amazon Nova Pro, which usually means a more recent knowledge cutoff and updated safety post-training. Amazon Nova Pro is usually picked for enterprise llm and rag workloads, while o3 sees more deployments in reasoning and math. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.
Side-by-side specs
| Spec | Amazon Nova Pro | o3 |
|---|---|---|
| Provider | Other | OpenAI |
| Released | Dec 2024 | Apr 2025 |
| Modalities | text, vision, video | text, vision |
| Context window | 300K tokens | 200K tokens |
| Max output | , | , |
| Input · 1M | $0.80 / 1M tokens | $2.00 / 1M tokens |
| Output · 1M | $3.20 / 1M tokens | $8.00 / 1M tokens |
| Knowledge cutoff | , | 2024-06 |
| Open weights | No | No |
| API available | Yes | Yes |
Pricing at scale
What you'd actually pay at typical workloads. Numbers come from each model's published per-million-token rates.
- Light usage, 100k in / 50k out per day$7.20 vs $18.00
- Heavy usage, 1M in / 500k out per day$72.00 vs $180
- RAG workload, 5M in / 200k out per day$139 vs $348
Light usage, 100k in / 50k out per day: $7.20 vs $18.00 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $72.00 vs $180 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $139 vs $348 per month, model A comes out ahead.
Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.
- Amazon Nova Pro$0.240
- o3$0.600
Benchmarks compared
Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.
- HumanEval,95.0
- GPQA,87.7
Amazon Nova Pro fits when…
- AWS-native
- Long context
- Multimodal incl. video
- Cost-sensitive workloads, 2.5× cheaper than o3 on output tokens.
- Multimodal needs covering video.
o3 fits when…
- Industry-leading reasoning depth at launch
- Strong on math, science, and abstract puzzles
- Tool-use during reasoning loops
Consider DBRX
Databricks' 132B MoE, a notable 2024 open-weight release tuned for enterprise.
Frequently asked
Is Amazon Nova Pro or o3 cheaper?
Amazon Nova Pro is cheaper at $3.20 / 1M tokens per million output tokens, vs $8.00 / 1M tokens for o3.Which has the larger context window?
Amazon Nova Pro accepts 300K tokens vs 200K for o3.Is Amazon Nova Pro or o3 better for coding?
Both Amazon Nova Pro and o3 are competitive on coding benchmarks. See each model's individual spec page for HumanEval and SWE-bench scores where published. For an opinionated pick, consult our Best LLM for Coding ranking.Are either of these models open source?
Neither model ships open weights, both are accessible only via their respective providers' APIs.When were Amazon Nova Pro and o3 released?
Amazon Nova Pro was released by Other on 2024-12-03. o3 was released by OpenAI on 2025-04-16.
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