Fugu Ultra v2 vs GLM 5.3 Prime
GLM 5.3 Prime is 2.6× cheaper than Fugu Ultra v2 on a blended basis.
Side by side
Green marks the better value in each row where a comparison is meaningful.
| Attribute | Fugu Ultra v2 | GLM 5.3 Prime |
|---|---|---|
| Provider | Sakana | Z.ai |
| Input / 1M tokens | $5.00 | $2.80 |
| Output / 1M tokens | $30.00 | $8.80 |
| Blended / 1M tokens | $11.25 | $4.30 |
| Cached input / 1M | $0.500 | $0.560 |
| Context window | 1M | 1M |
| Max output | 128K | 131K |
| Input modalities | text, image, file | text |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | Yes | Yes |
| Prompt caching | Yes | Yes |
| Open weights | No | No |
| Knowledge cutoff | 2026-08-28 | - |
| Released | September 11, 2026 | September 23, 2026 |
Frequently asked
Is Fugu Ultra v2 or GLM 5.3 Prime cheaper?
GLM 5.3 Prime is 2.6× cheaper than Fugu Ultra v2 on a blended basis.
What is the price difference between Fugu Ultra v2 and GLM 5.3 Prime?
Fugu Ultra v2 costs $5.00 per million input tokens and $30.00 per million output tokens. GLM 5.3 Prime costs $2.80 and $8.80 respectively.
Which has the larger context window, Fugu Ultra v2 or GLM 5.3 Prime?
Both offer 1M tokens.