NVIDIA: Nemotron 3 Ultra (free) vs StepFun: Step 3.7 Flash
Based on weekly OpenRouter usage tracked by AI Tier List, NVIDIA: Nemotron 3 Ultra (free) ranks #6 overall — ahead of StepFun: Step 3.7 Flash at #13. NVIDIA: Nemotron 3 Ultra (free) is cheaper on input tokens at Free/1M vs $0.20/1M for StepFun: Step 3.7 Flash. NVIDIA: Nemotron 3 Ultra (free) offers the larger context window at 1M tokens.
Spec Comparison
| NVIDIA: Nemotron 3 Ultra (free) | StepFun: Step 3.7 Flash | |
|---|---|---|
| Author | nvidia | stepfun |
| Input price (per 1M tokens) | Free | $0.20 |
| Output price (per 1M tokens) | Free | $1.15 |
| Context window | 1M | 256K |
| Input modalities | text | text, image, video |
| Output modalities | text | text |
| AA Intelligence | — | — |
| AA Coding | — | — |
| AA Agentic | — | — |
| Released | Jun 2026 | May 2026 |
Usage Rank by Task
| Task | NVIDIA: Nemotron 3 Ultra (free) | StepFun: Step 3.7 Flash |
|---|---|---|
| Overall | #6 | #13 |
| Memory Extraction | #5 | #7 |
| Multi-step Planning | #9 | — |
| Tool Dispatch | — | #8 |
| Web Search | #8 | — |
| Debugging | #6 | #8 |
| DevOps Config | #6 | #7 |
| File Read/Write | #8 | #9 |
| Frontend UI | #8 | #5 |
| Code Implementation | #8 | #7 |
| Repo Analysis | #7 | #9 |
| Code Review & Security | #8 | #9 |
| Shell Execution | #8 | #7 |
| SQL & Database | #9 | #6 |
| Conversation | #6 | — |
FAQ
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.