# Nova Premier 1.0 vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 47.9 to 38.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/nova-premier-1-0-vs-step-5-preview
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Step 5 Preview leads 40.0 to 23.0.
- Step 5 Preview is cheaper at $1 / $2.70 per million input/output tokens, against $2.50 / $12.50 for Nova Premier 1.0.
- Step 5 Preview accepts more context: 1.02M tokens versus 1M.

## Snapshot

| | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| Provider | Amazon | StepFun |
| Noometry Index | 38.3 | 47.9 |
| Rank | 189 | 58 |
| Context | 1M | 1.02M |
| Input $/M | $2.50 | $1 |
| Output $/M | $12.50 | $2.70 |
| Weights | Proprietary | Proprietary |

## Coding

- Nova Premier 1.0: —
- Step 5 Preview: 51.8 (#36)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1564 |
| SciCode | — | 58.9% |
| LMArena Coding | — | 1480 |

## Reasoning

- Nova Premier 1.0: 23.0 (#185)
- Step 5 Preview: 40.0 (#57)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| Kagi LLM Benchmark | 44.8% | — |
| CritPt | — | 20.9% |
| LMArena Hard Prompts | — | 1465 |

## Math

- Nova Premier 1.0: 33.8 (#199)
- Step 5 Preview: 46.1 (#72)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| ProofBench | — | 42% |
| Omni-MATH | 35% | — |
| LMArena Math | — | 1470 |

## Knowledge

- Nova Premier 1.0: 35.8 (#180)
- Step 5 Preview: 41.2 (#112)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| MMLU-Pro | 72.6% | — |
| GPQA (HELM) | 51.8% | — |
| LMArena Expert | — | 1470 |

## Multimodal

- Nova Premier 1.0: —
- Step 5 Preview: 41.0 (#41)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| LMArena Vision | — | 1267 |

## Multilingual

- Nova Premier 1.0: —
- Step 5 Preview: 53.8 (#54)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| LMArena Non-English | — | 1432 |
| LMArena Chinese | — | 1519 |
| LMArena Russian | — | 1436 |
| LMArena Spanish | — | 1439 |

## Instruction Following

- Nova Premier 1.0: 66.8 (#204)
- Step 5 Preview: 76.0 (#50)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| IFEval | 80.3% | — |
| LMArena Instruction Following | — | 1444 |

## Long Context

- Nova Premier 1.0: —
- Step 5 Preview: 44.5 (#64)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | — | 1455 |

## Writing & Preference

- Nova Premier 1.0: 51.0 (#178)
- Step 5 Preview: 62.8 (#71)

| Benchmark | Nova Premier 1.0 | Step 5 Preview |
|---|---|---|
| LMArena Text | — | 1442 |
| LMArena Creative Writing | — | 1410 |
| WildBench | 78.8% | — |
| LMArena Multi-Turn | — | 1447 |

## FAQ

### Is Nova Premier 1.0 better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 47.9 to 38.3 on the Noometry Index.

### Which is cheaper, Nova Premier 1.0 or Step 5 Preview?

Step 5 Preview is cheaper. It lists at $1 per million input tokens and $2.70 per million output tokens; Nova Premier 1.0 lists at $2.50 and $12.50.

### Which has the bigger context window?

Step 5 Preview does, with 1.02M tokens against 1M.

### How many benchmarks do Nova Premier 1.0 and Step 5 Preview share?

0 benchmarks have published results for both models. Nova Premier 1.0 has 6 scored results on Noometry and Step 5 Preview has 18.