Nemotron 3.5 Lightning is free on 3 providers today. Permanent free tiers come first, then one-time trials.
| Provider | API model ID | Context | Free limits | Sign-up |
|---|---|---|---|---|
| Kilo AI Gateway | nvidia/nemotron-3.5-lightning:free |
1M | 200 requests/hour per IP on free models (anonymous use allowed) | No card |
| Vercel AI Gateway | nvidia/nemotron-3.5-lightning-free |
1M | Lower per-model limits than the paid tier (429 on excess) | Free account |
| BazaarLink | nvidia/nemotron-3.5-lightning-free |
Unknown | 10 RPM (20 RPM with any credit), 2 concurrent requests | Free account |
Free lists change often. Each provider page shows its full limits and code examples, and every change is logged in the changelog. Want to call it from Claude Code or Cursor? Use the setup generator.