Model comparison
Claude Haiku 4.5 vs Nova Premier 1.0
Claude Haiku 4.5 is the stronger model overall, scoring 39.3 to 37.7 on the Noometry Index.
Last verified . 5 shared benchmarks.
Summary
- They share 5 benchmarks with published results for both. Claude Haiku 4.5 scores higher in 4 categories and Nova Premier 1.0 in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 4.5 leads 43.0 to 31.5.
- The biggest single-benchmark swing is Omni-MATH: 56.1% for Claude Haiku 4.5 and 35% for Nova Premier 1.0.
- Claude Haiku 4.5 is cheaper at $1 / $5 per million input/output tokens, against $2.50 / $12.50 for Nova Premier 1.0.
- Nova Premier 1.0 accepts more context: 1M tokens versus 200K.
Side by side
| Claude Haiku 4.5 | Nova Premier 1.0 | |
|---|---|---|
| Provider | Anthropic | Amazon |
| Noometry Index | 39.3 | 37.7 |
| Released | 2025-10-15 | 2025-04-30 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | 1M |
| Max output | 64K | 10K |
| Input $ / M tokens | $1 | $2.50 |
| Output $ / M tokens | $5 | $12.50 |
| Results tracked | 53 | 6 |
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Category by category
Coding Not comparable
Claude Haiku 4.5: 43.9 (#71), Nova Premier 1.0: —
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| SWE-bench Verified (bash only) | 66.6% | — |
| LMArena WebDev | 1330 | — |
| SWE-bench Multilingual | 64.7% | — |
| SciCode | 43.3% | — |
| WeirdML | 45.4% | — |
| LMArena Coding | 1454 | — |
| ALE-Bench | 653.48 | — |
Agentic & Tool Use Not comparable
Claude Haiku 4.5: 33.5 (#50), Nova Premier 1.0: —
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| Terminal-Bench | 35.5% | — |
| Berkeley Function Calling Leaderboard | 68.7% | — |
| DeepResearch Bench | 45.5% | — |
| BALROG | 31.2% | — |
| ExploitBench | 13.7% | — |
| Vending-Bench 2 | 458.89 | — |
Reasoning Nova Premier 1.0 leads
Claude Haiku 4.5: 15.1 (#310), Nova Premier 1.0: 22.3 (#182)
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| ARC-AGI-2 | 4% | — |
| Kagi LLM Benchmark | — | 44.8% |
| NYT Connections (extended) | 14.3% | — |
| ARC-AGI-1 | 47.7% | — |
| CritPt | 0% | — |
| Chess Puzzles | 8% | — |
| LMArena Hard Prompts | 1420 | — |
| DTBench | 73.6% | — |
| LMCA | 30.9% | — |
| Epoch Capabilities Index | 142.42 | — |
| ForecastBench | 61.4 | — |
Math Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.0 (#69), Nova Premier 1.0: 31.5 (#194)
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| Omni-MATH | 56.1% | 35% |
| OTIS Mock AIME 2024-2025 | 66.7% | — |
| LMArena Math | 1395 | — |
| MATH Level 5 | 96.4% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Claude Haiku 4.5 leads
Claude Haiku 4.5: 37.6 (#146), Nova Premier 1.0: 35.4 (#176)
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| MMLU-Pro | 77.7% | 72.6% |
| GPQA (HELM) | 60.5% | 51.8% |
| GPQA Diamond | 71.2% | — |
| SimpleQA Verified | 13.2% | — |
| Vectara Hallucination Rate | 9.8% | — |
| LMArena Expert | 1443 | — |
Multimodal Not comparable
Claude Haiku 4.5: 27.0 (#111), Nova Premier 1.0: —
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1420 | — |
Multilingual Not comparable
Claude Haiku 4.5: 50.1 (#124), Nova Premier 1.0: —
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| LMArena Non-English | 1376 | — |
| LMArena Chinese | 1415 | — |
| LMArena French | 1408 | — |
| LMArena German | 1377 | — |
| LMArena Japanese | 1339 | — |
| LMArena Korean | 1346 | — |
| LMArena Russian | 1380 | — |
| LMArena Spanish | 1420 | — |
Instruction Following Claude Haiku 4.5 leads
Claude Haiku 4.5: 71.6 (#144), Nova Premier 1.0: 66.9 (#201)
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| IFEval | 80.1% | 80.3% |
| LMArena Instruction Following | 1414 | — |
Long Context Not comparable
Claude Haiku 4.5: 43.6 (#86), Nova Premier 1.0: —
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| LMArena Longer Query | 1427 | — |
Writing & Preference Claude Haiku 4.5 leads
Claude Haiku 4.5: 58.1 (#119), Nova Premier 1.0: 51.0 (#174)
| Benchmark | Claude Haiku 4.5 | Nova Premier 1.0 |
|---|---|---|
| WildBench | 83.9% | 78.8% |
| LMArena Text | 1396 | — |
| LMArena Creative Writing | 1371 | — |
| EQ-Bench 4 | 1064 | — |
| LMArena Multi-Turn | 1409 | — |
Frequently asked questions
Is Claude Haiku 4.5 better than Nova Premier 1.0?
Claude Haiku 4.5 is the stronger model overall, scoring 39.3 to 37.7 on the Noometry Index.
Which is cheaper, Claude Haiku 4.5 or Nova Premier 1.0?
Claude Haiku 4.5 is cheaper. It lists at $1 per million input tokens and $5 per million output tokens; Nova Premier 1.0 lists at $2.50 and $12.50.
Which has the bigger context window?
Nova Premier 1.0 does, with 1M tokens against 200K.
How many benchmarks do Claude Haiku 4.5 and Nova Premier 1.0 share?
5 benchmarks have published results for both models. Claude Haiku 4.5 has 53 scored results on Noometry and Nova Premier 1.0 has 6.