Know the limit before you write
Models differ in how long a prompt they accept, and until now you only found out after sending. The prompt box now shows a live count of characters written / that model's limit — amber as you approach it, red when it is full.
Pasting a long prompt no longer goes nowhere
Paste a long prompt and, if it exceeds the limit, we keep what fits and tell you exactly how many characters did not make it. No counting by hand, and no "I pasted and nothing happened".
The limits
| Model | Limit |
|---|---|
| Seedance (all) | No limit |
| Wan 3.0 | 20,000 |
| MiniMax H3 | 7,000 |
| Wan 2.7 | 5,000 |
| Kling 3.0 | 2,500 |
| HappyHorse 1.1 | 2,500 |
| Kling O3 | No limit |
These follow each model's own upstream specification. The same rules apply when you submit via the CLI or MCP.