Mercury 2.5 Preview vs Nemotron 3.5 Lightning
Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.
Specs & pricing
| Mercury 2.5 Preview | Nemotron 3.5 Lightning | |
|---|---|---|
| Company | Inception | NVIDIA |
| Released | Aug 2026 | Aug 2026 |
| Context window | 260K | 1.0M |
| Input /1M tokens | $0.04 | $0.1 |
| Output /1M tokens | $0.15 | $0.25 |
| Open weights | No | Yes |
Benchmarks
| Benchmark | Mercury 2.5 Preview | Nemotron 3.5 Lightning |
|---|---|---|
| Arena Elo | — | 824 Elo |
| GPQA | — | 74.3% |
| Speed (tok/s) | — | 283 tok/s |
Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.