Nova Pro (EU) vs OpenAI: GPT-5.1
Nova Pro (EU) is cheaper than OpenAI: GPT-5.1 by about 59% on a blended (75% input / 25% output) basis. Nova Pro (EU) charges $0.800000 / $3.200000 per 1M input/output tokens; OpenAI: GPT-5.1 charges $1.250000 / $10.000000.
| Field | Nova Pro (EU) | OpenAI: GPT-5.1 |
|---|---|---|
| Input $/Mtok | $0.800000 | $1.250000 |
| Output $/Mtok | $3.200000 | $10.000000 |
| Cache read $/Mtok | – | $0.125000 |
| Cache write $/Mtok | – | – |
| Input $/Mchar | n/a | 0.352142 |
| Output $/Mchar | n/a | 2.817139 |
| Context window | 300000 | 400000 |
| Tokenizer | – | o200k |
Price history
Same workload, monthly cost
Illustrative monthly cost at 10M tokens/month, split per workload preset. Not a substitute for the calculator, which uses your own volume, cache and batch assumptions.
| Workload | Nova Pro (EU) | OpenAI: GPT-5.1 |
|---|---|---|
| Coding agent | $9.20 | $16.88 |
| RAG chat | $11.60 | $25.63 |
| Summarisation (batch) | $10.40 | $21.25 |
| Classification | $8.48 | $14.25 |
| Chat assistant | $17.60 | $47.50 |
| Content generation | $27.20 | $82.50 |
Cite this page
Nova Pro (EU) vs OpenAI: GPT-5.1: $0.800000/$3.200000 vs $1.250000/$10.000000 per 1M tokens as of 2026-10-04. Token Barometer by Dejan Strbad, https://tokenbarometer.com, data CC BY 4.0. https://tokenbarometer.com/compare/amazon_nova-pro-vs-openai_gpt-5.1
Nova Pro (EU) page | OpenAI: GPT-5.1 page | Open in calculator