Nova Premier 1.0 vs Claude Opus 4.5
Claude Opus 4.5 leads Nova Premier 1.0 on the Artificial Analysis Intelligence Index, 29.1 to 9.2, and Nova Premier 1.0 costs 2.0x less per output token ($12.50 vs $25.00 per million). Updated October 21, 2026; 12 benchmarks have a result for both.
Nova Premier 1.0 or Claude Opus 4.5: which to pick
Only Claude Opus 4.5 has a coding score, 44.0 on the Vibe Coding Index; Nova Premier 1.0 has none, so the two cannot be ranked on coding.
Pick Nova Premier 1.0 for output tokens 2.0x cheaper ($12.50 vs $25.00 per million) and a larger context window (1M against 200K tokens).
- Shared results
- 12
- Nova Premier 1.0 only
- 1
- Claude Opus 4.5 only
- 93
- Like-for-like categories
- 8 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Only Claude Opus 4.5 has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
Claude Opus 4.5
Claude Opus 4.5 leads, 29.1 against 9.2.
Same board, both measured
Reasoning
GPQA Diamond
No call
Only Claude Opus 4.5 has a GPQA Diamond result, 85.9%.
Directional only
Math
AIME
No call
Only Claude Opus 4.5 has a AIME result, 95.4%.
Directional only
Knowledge
MMLU Pro
No call
Only Claude Opus 4.5 has a MMLU Pro result, 87.3%.
Directional only
Web design
Design Arena: websites
Claude Opus 4.5
Claude Opus 4.5 leads, 1247 against 835.
Same board, both measured
Long documents
Listed context window
Nova Premier 1.0
Nova Premier 1.0 takes 1M tokens against 200K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Nova Premier 1.0
Nova Premier 1.0 $0.0088, Claude Opus 4.5 $0.018 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Claude Opus 4.5 has the number, $1.37.
Directional only
At a glance
- Coding index
- Nova Premier 1.0 not benchmarked, Claude Opus 4.5 44.0 from 3 benchmarks.
- Widest category
- Math, 74.0 points apart on average over 2 shared benchmarks.
- Widest single gap
- AA Math Index: Nova Premier 1.0 17.3 against Claude Opus 4.5 91.3, 74.0 points apart on a 0 to 100 scale.
- Output price
- Nova Premier 1.0 $12.50 against Claude Opus 4.5 $25.00 per million output tokens, 2.0x apart.
- Context window
- Nova Premier 1.0 takes 1M tokens, Claude Opus 4.5 200K.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Nova Premier 1.0 | Bars | Claude Opus 4.5 | Ties |
|---|---|---|---|---|
| Coding | 0 | 2 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 0 | 1 | ||
| Reasoning | 0 | 2 | ||
| Math | 0 | 2 | ||
| Knowledge | 0 | 1 | ||
| Web design | 0 | 1 | ||
| General | 0 | 2 | ||
| All shared boards | 0 | 12 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index02
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| SWE-bench Verified | Not measured | 79.2% | Only Claude Opus 4.5 measured |
| SWE-bench (full test set) | Not measured | 52.6% | Only Claude Opus 4.5 measured |
| SWE-bench Multilingual | Not measured | 70.7% | Only Claude Opus 4.5 measured |
| LMArena WebDev | Not measured | 1494 | Only Claude Opus 4.5 measured |
| LiveCodeBench (Vals AI) | Not measured | 83.7% | Only Claude Opus 4.5 measured |
| SWE-bench Verified (Vals AI) | Not measured | 76.4% | Only Claude Opus 4.5 measured |
| Vibe Code Bench (Vals AI) | Not measured | 20.6% | Only Claude Opus 4.5 measured |
| LiveCodeBench (Artificial Analysis run) | 31.7% | 87.1% | Claude Opus 4.5 |
| Terminal-Bench Hard (Artificial Analysis run) | 6.8% | 47.0% | Claude Opus 4.5 |
| Terminal-Bench | Not measured | 63.1% | Only Claude Opus 4.5 measured |
| GSO-Bench | Not measured | 26.5% | Only Claude Opus 4.5 measured |
| WeirdML | Not measured | 63.7% | Only Claude Opus 4.5 measured |
| Cybench | Not measured | 82.0% | Only Claude Opus 4.5 measured |
| ALE-Bench | 147.4 | Not measured | Only Nova Premier 1.0 measured |
| LMArena Text: coding | Not measured | 1503 | Only Claude Opus 4.5 measured |
| LMArena Text: software and IT | Not measured | 1483 | Only Claude Opus 4.5 measured |
| LMArena WebDev: React | Not measured | 1478 | Only Claude Opus 4.5 measured |
| LMArena WebDev: HTML | Not measured | 1510 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 20 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| AA Intelligence Index | 9.2 | 29.1 | Claude Opus 4.5 |
| Epoch Capabilities Index | Not measured | 150.1 | Only Claude Opus 4.5 measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| Design Arena: agents building web apps | Not measured | 1159 | Only Claude Opus 4.5 measured |
| Design Arena: agents building full-stack apps | Not measured | 1156 | Only Claude Opus 4.5 measured |
| Design Arena: agents building mobile apps | Not measured | 1189 | Only Claude Opus 4.5 measured |
| Design Arena: agents building Android apps | Not measured | 1175 | Only Claude Opus 4.5 measured |
| τ²-Bench Telecom | 38.3% | 89.5% | Claude Opus 4.5 |
| METR time horizons | Not measured | 75.0% | Only Claude Opus 4.5 measured |
| Remote Labor Index | Not measured | 3.8% | Only Claude Opus 4.5 measured |
| GDPval | Not measured | 45.5% | Only Claude Opus 4.5 measured |
| BALROG | Not measured | 43.5% | Only Claude Opus 4.5 measured |
| DeepResearch Bench | Not measured | 54.8% | Only Claude Opus 4.5 measured |
| OSWorld | Not measured | 66.3% | Only Claude Opus 4.5 measured |
| Vending-Bench 2 | Not measured | $4,967 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 27 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 85.9% | Only Claude Opus 4.5 measured |
| MMMU Pro (Vals AI) | Not measured | 83.0% | Only Claude Opus 4.5 measured |
| GPQA Diamond (Artificial Analysis run) | 56.9% | 86.6% | Claude Opus 4.5 |
| Humanity's Last Exam (Artificial Analysis run) | 4.2% | 30.1% | Claude Opus 4.5 |
| GPQA Diamond (Epoch AI run) | Not measured | 86.0% | Only Claude Opus 4.5 measured |
| ARC-AGI | Not measured | 80.0% | Only Claude Opus 4.5 measured |
| ARC-AGI-2 | Not measured | 37.6% | Only Claude Opus 4.5 measured |
| SimpleBench | Not measured | 62.0% | Only Claude Opus 4.5 measured |
| Chess puzzles | Not measured | 14.0% | Only Claude Opus 4.5 measured |
| Mystery game puzzles | Not measured | 22.0% | Only Claude Opus 4.5 measured |
| EBR-bench | Not measured | 14.3% | Only Claude Opus 4.5 measured |
| VPCT | Not measured | 40.0% | Only Claude Opus 4.5 measured |
| LMArena Text: hard prompts | Not measured | 1476 | Only Claude Opus 4.5 measured |
| LMArena Text: expert | Not measured | 1487 | Only Claude Opus 4.5 measured |
| LMArena Text: hard prompts in English | Not measured | 1482 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 6 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| AIME | Not measured | 95.4% | Only Claude Opus 4.5 measured |
| MGSM (Vals AI) | Not measured | 95.2% | Only Claude Opus 4.5 measured |
| AA Math Index | 17.3 | 91.3 | Claude Opus 4.5 |
| AIME 2025 (Artificial Analysis run) | 17.3% | 91.3% | Claude Opus 4.5 |
| OTIS Mock AIME | Not measured | 86.1% | Only Claude Opus 4.5 measured |
| FrontierMath, tiers 1 to 3 | Not measured | 34.4% | Only Claude Opus 4.5 measured |
| FrontierMath, tier 4 | Not measured | 4.9% | Only Claude Opus 4.5 measured |
| ProofBench | Not measured | 36.0% | Only Claude Opus 4.5 measured |
| LMArena Text: math | Not measured | 1463 | Only Claude Opus 4.5 measured |
| LMArena Text: mathematical work | Not measured | 1468 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 3 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 87.3% | Only Claude Opus 4.5 measured |
| LegalBench (Vals AI) | Not measured | 84.6% | Only Claude Opus 4.5 measured |
| CaseLaw (Vals AI) | Not measured | 62.6% | Only Claude Opus 4.5 measured |
| CorpFin (Vals AI) | Not measured | 65.1% | Only Claude Opus 4.5 measured |
| TaxEval (Vals AI) | Not measured | 74.9% | Only Claude Opus 4.5 measured |
| MortgageTax (Vals AI) | Not measured | 68.7% | Only Claude Opus 4.5 measured |
| MedQA (Vals AI) | Not measured | 95.9% | Only Claude Opus 4.5 measured |
| MedCode (Vals AI) | Not measured | 49.2% | Only Claude Opus 4.5 measured |
| MMLU Pro (Artificial Analysis run) | 73.3% | 89.5% | Claude Opus 4.5 |
| SimpleQA Verified | Not measured | 45.7% | Only Claude Opus 4.5 measured |
| GeoBench | Not measured | 75.0% | Only Claude Opus 4.5 measured |
| LMArena Text: science | Not measured | 1454 | Only Claude Opus 4.5 measured |
| LMArena Text: medicine and healthcare | Not measured | 1444 | Only Claude Opus 4.5 measured |
| LMArena Text: legal and government | Not measured | 1459 | Only Claude Opus 4.5 measured |
| LMArena Text: business and finance | Not measured | 1448 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 2 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| Design Arena: websites | 835 | 1247 | Claude Opus 4.5 |
| Design Arena: UI components | Not measured | 1238 | Only Claude Opus 4.5 measured |
| Design Arena: game dev | Not measured | 1229 | Only Claude Opus 4.5 measured |
| Design Arena: data viz | Not measured | 1243 | Only Claude Opus 4.5 measured |
| Design Arena: 3D | Not measured | 1214 | Only Claude Opus 4.5 measured |
| Design Arena: all code categories | Not measured | 1242 | Only Claude Opus 4.5 measured |
| Design Arena: SVG | Not measured | 1181 | Only Claude Opus 4.5 measured |
| Design Arena: ASCII art | Not measured | 1190 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| SAGE (Vals AI) | Not measured | 52.1% | Only Claude Opus 4.5 measured |
| MedScribe (Vals AI) | Not measured | 85.3% | Only Claude Opus 4.5 measured |
| IFBench | 36.2% | 58.0% | Claude Opus 4.5 |
| Long context reasoning (AA-LCR) | 34.3% | 77.3% | Claude Opus 4.5 |
| DTBench | Not measured | 89.9% | Only Claude Opus 4.5 measured |
| LMCA | Not measured | 44.5% | Only Claude Opus 4.5 measured |
| CL-bench | Not measured | 21.1% | Only Claude Opus 4.5 measured |
| Furniture assembly | Not measured | 28.3% | Only Claude Opus 4.5 measured |
| LMArena Text | Not measured | 1451 | Only Claude Opus 4.5 measured |
| LMArena Text: instruction following | Not measured | 1478 | Only Claude Opus 4.5 measured |
| LMArena Text: creative writing | Not measured | 1445 | Only Claude Opus 4.5 measured |
| LMArena Text: English | Not measured | 1461 | Only Claude Opus 4.5 measured |
| LMArena Text: non-English | Not measured | 1438 | Only Claude Opus 4.5 measured |
| LMArena Text: Chinese | Not measured | 1470 | Only Claude Opus 4.5 measured |
| LMArena Text: German | Not measured | 1449 | Only Claude Opus 4.5 measured |
| LMArena Text: Japanese | Not measured | 1417 | Only Claude Opus 4.5 measured |
| LMArena Text: Korean | Not measured | 1424 | Only Claude Opus 4.5 measured |
| LMArena Text: French | Not measured | 1471 | Only Claude Opus 4.5 measured |
| LMArena Text: Spanish | Not measured | 1457 | Only Claude Opus 4.5 measured |
| LMArena Text: Russian | Not measured | 1447 | Only Claude Opus 4.5 measured |
| LMArena Text: Polish | Not measured | 1439 | Only Claude Opus 4.5 measured |
| LMArena Text: multi-turn | Not measured | 1466 | Only Claude Opus 4.5 measured |
| LMArena Text: longer queries | Not measured | 1479 | Only Claude Opus 4.5 measured |
| LMArena Text: writing and language | Not measured | 1452 | Only Claude Opus 4.5 measured |
| LMArena Text: entertainment and media | Not measured | 1434 | Only Claude Opus 4.5 measured |
| LMArena Document | Not measured | 1462 | Only Claude Opus 4.5 measured |
| Neither model has a result on the other 20 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Nova Premier 1.0 | Claude Opus 4.5 | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Nova Premier 1.0 costs less
Repository review
50K input + 3K output tokens
Nova Premier 1.0 costs less
Agent loop
200K input + 10K output tokens
Nova Premier 1.0 costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Amazon Nova Premier 1.0 | Anthropic Claude Opus 4.5 |
|---|---|---|
| Maker | Amazon | Anthropic |
| Weights | No public weights listed | No public weights listed |
| Released | October 31, 2025 | November 24, 2025 |
| Context window | 1M | 200K |
| Input $/Mtok | $2.50 | $5.00 |
| Output $/Mtok | $12.50 | $25.00 |
| Coding index | Not benchmarked | 44.0 |
| Independent measurements behind it | 0 | 3 |
| Cost per solved task | Not computable | $1.37 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Nova Premier 1.0 better than Claude Opus 4.5 for coding?
Only Claude Opus 4.5 has a coding score, 44.0 on the Vibe Coding Index; Nova Premier 1.0 has none, so the two cannot be ranked on coding. Pick Nova Premier 1.0 for output tokens 2.0x cheaper ($12.50 vs $25.00 per million) and a larger context window (1M against 200K tokens).
Which is cheaper, Nova Premier 1.0 or Claude Opus 4.5?
Nova Premier 1.0 costs $2.50 per million input tokens and $12.50 per million output tokens; Claude Opus 4.5 costs $5.00 and $25.00. Cost per solved task is known for Claude Opus 4.5 only.
Which has the bigger context window, Nova Premier 1.0 or Claude Opus 4.5?
Nova Premier 1.0, with 1M tokens against 200K.
How many benchmarks is the Nova Premier 1.0 vs Claude Opus 4.5 comparison based on?
12 benchmarks have a result for both models as of October 21, 2026. Nova Premier 1.0's coding index rests on 0 independent benchmarks and Claude Opus 4.5's on 3. Where only one model has a result, the page says so instead of naming a winner.