Fugu Ultra v2 vs Mercury 2.5 Preview
Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.
Specs & pricing
| Fugu Ultra v2 | Mercury 2.5 Preview | |
|---|---|---|
| Company | Sakana Ai | Inception |
| Released | Sep 2026 | Aug 2026 |
| Context window | 1.0M | 260K |
| Input /1M tokens | $5 | $0.04 |
| Output /1M tokens | $30 | $0.15 |
| Open weights | No | No |
Benchmarks
No published benchmark scores yet for either model — scores appear here automatically once measured.
Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.