Head-to-head showdown: Amazon Nova Pro ($0.80 in / $3.20 out per 1M) vs Devstral 2 (2512) (OpenRouter) ($0.44 in / $2.20 out per 1M). Devstral 2 (2512) (OpenRouter) is 1.5× cheaper across standard token mixes, with 300K vs 262.1K context windows.
amazon.nova-pro-v1:0 · amazon
devstral-2512 · mistral
Benchmark
| Workload Scenario | Amazon Nova Pro | Devstral 2 (2512) (OpenRouter) | Price Delta |
|---|---|---|---|
| 1M input tokens (raw text) | $0.80 | $0.44 | +$0.36 |
| 1M output tokens (generation) | $3.20 | $2.20 | +$1.00 |
| 1M tokens · 70% input / 30% output mix | $1.52 | $0.968 | +$0.552 |
| Standard chat turn (4K in / 800 out, 50% cached) | $0.00456 | $0.002728 | +$0.001832 |
| Monthly scale (10K requests / day) | $1,368.00 | $818.40 | +$549.60 |
Negative difference = Amazon Nova Pro is cheaper. Positive = Devstral 2 (2512) (OpenRouter) is cheaper.
Scaling Curve
Total cost of a token volume at 70/30 input/output split (uncached). Log-log scale.
Verdict
Devstral 2 (2512) (OpenRouter) is cheaper on both input and output rates, so it costs less at every input/output mix. Price alone still isn't the whole decision: capability, latency and context limits (Amazon Nova Pro: 300K, Devstral 2 (2512) (OpenRouter): 262.1K) may justify the premium for your task.
FAQ
On input, Devstral 2 (2512) (OpenRouter) is cheaper ($0.44/M vs $0.80/M). On output, Devstral 2 (2512) (OpenRouter) is cheaper ($2.20/M vs $3.20/M). The same model is cheaper on both sides, so it wins at every mix.
A chat-style request (4,000 input + 800 output tokens, 50% cached) costs $0.00456 on Amazon Nova Pro and $0.002728 on Devstral 2 (2512) (OpenRouter) — Devstral 2 (2512) (OpenRouter) is 1.7× more expensive for that workload.
Amazon Nova Pro supports 300,000 tokens (5K max output); Devstral 2 (2512) (OpenRouter) supports 262,144 (209.7K max output). Amazon Nova Pro fits 1.1× more context, which matters for long documents and agents.