Model comparison
Claude Opus 4.1 vs Nova Premier 1.0
Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 38.3 on the Noometry Index. Nova Premier 1.0 costs 6.0× less per token, which makes it the better buy when Claude Opus 4.1's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in math, where Nova Premier 1.0 leads 33.8 to 22.3.
- Nova Premier 1.0 is cheaper at $2.50 / $12.50 per million input/output tokens, against $15 / $75 for Claude Opus 4.1.
- Nova Premier 1.0 accepts more context: 1M tokens versus 200K.
Side by side
| Claude Opus 4.1 | Nova Premier 1.0 | |
|---|---|---|
| Provider | Anthropic | Amazon |
| Noometry Index | 41.0 | 38.3 |
| Released | 2025-08-05 | 2025-04-30 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | 1M |
| Max output | 32K | 10K |
| Input $ / M tokens | $15 | $2.50 |
| Output $ / M tokens | $75 | $12.50 |
| Results tracked | 48 | 6 |
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Category by category
Coding Not comparable
Claude Opus 4.1: 44.4 (#73), Nova Premier 1.0: —
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| SWE-bench Verified | 73.3% | — |
| LMArena WebDev | 1390 | — |
| WeirdML | 45.9% | — |
| LMArena Coding | 1479 | — |
| ALE-Bench | 674.77 | — |
| AlgoTune | 1.34 | — |
Agentic & Tool Use Not comparable
Claude Opus 4.1: 35.0 (#41), Nova Premier 1.0: —
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| Terminal-Bench | 38% | — |
| GDPval | 43.6% | — |
| Cybench | 42% | — |
| DeepResearch Bench | 48.3% | — |
| LMArena Search | 1148 | — |
| METR Time Horizons | 66.8% | — |
Reasoning Claude Opus 4.1 leads
Claude Opus 4.1: 32.2 (#76), Nova Premier 1.0: 23.0 (#185)
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| SimpleBench | 60% | — |
| Kagi LLM Benchmark | — | 44.8% |
| Chess Puzzles | 7% | — |
| EnigmaEval | 7.2% | — |
| EBR-Bench | 7.9% | — |
| LMArena Hard Prompts | 1443 | — |
| Mystery Game Puzzles | 21% | — |
| DTBench | 80% | — |
| LMCA | 37.1% | — |
| Epoch Capabilities Index | 144.12 | — |
| ForecastBench | 62 | — |
Math Nova Premier 1.0 leads
Claude Opus 4.1: 22.3 (#277), Nova Premier 1.0: 33.8 (#199)
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 12.6% | — |
| FrontierMath Tier 4 | 2.4% | — |
| OTIS Mock AIME 2024-2025 | 68.9% | — |
| Omni-MATH | — | 35% |
| LMArena Math | 1431 | — |
| FrontierMath (Feb 2025 set) | 7.2% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Claude Opus 4.1 leads
Claude Opus 4.1: 42.0 (#101), Nova Premier 1.0: 35.8 (#180)
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| GPQA Diamond | 77.3% | — |
| Humanity's Last Exam | 11.5% | — |
| MMLU-Pro | — | 72.6% |
| Confabulations | 17.1% | — |
| Vectara Hallucination Rate | 11.8% | — |
| GPQA (HELM) | — | 51.8% |
| LMArena Expert | 1439 | — |
Multimodal Not comparable
Claude Opus 4.1: 26.8 (#119), Nova Premier 1.0: —
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| VPCT | 35% | — |
Multilingual Not comparable
Claude Opus 4.1: 52.0 (#95), Nova Premier 1.0: —
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| LMArena Non-English | 1405 | — |
| LMArena Chinese | 1427 | — |
| LMArena French | 1431 | — |
| LMArena German | 1413 | — |
| LMArena Japanese | 1378 | — |
| LMArena Korean | 1380 | — |
| LMArena Russian | 1422 | — |
| LMArena Spanish | 1448 | — |
Instruction Following Claude Opus 4.1 leads
Claude Opus 4.1: 75.6 (#58), Nova Premier 1.0: 66.8 (#204)
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| IFEval | — | 80.3% |
| LMArena Instruction Following | 1435 | — |
Long Context Not comparable
Claude Opus 4.1: 44.5 (#63), Nova Premier 1.0: —
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| LMArena Longer Query | 1455 | — |
Writing & Preference Claude Opus 4.1 leads
Claude Opus 4.1: 62.4 (#74), Nova Premier 1.0: 51.0 (#178)
| Benchmark | Claude Opus 4.1 | Nova Premier 1.0 |
|---|---|---|
| LMArena Text | 1419 | — |
| LMArena Creative Writing | 1412 | — |
| Short-Story Creative Writing | 84.7% | — |
| WildBench | — | 78.8% |
| LMArena Multi-Turn | 1444 | — |
Frequently asked questions
Is Claude Opus 4.1 better than Nova Premier 1.0?
Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 38.3 on the Noometry Index. Nova Premier 1.0 costs 6.0× less per token, which makes it the better buy when Claude Opus 4.1's lead doesn't matter for your workload.
Which is cheaper, Claude Opus 4.1 or Nova Premier 1.0?
Nova Premier 1.0 is cheaper. It lists at $2.50 per million input tokens and $12.50 per million output tokens; Claude Opus 4.1 lists at $15 and $75.
Which has the bigger context window?
Nova Premier 1.0 does, with 1M tokens against 200K.
How many benchmarks do Claude Opus 4.1 and Nova Premier 1.0 share?
0 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Nova Premier 1.0 has 6.