Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception
Details
| Field | Value |
|---|---|
| id | mercury-2.5 |
| family | mercury |
| modality | text->text |
| context_length | 260000 |
| max_output_tokens | 65536 |
| knowledge_cutoff | 2025-11-01 |
| release_date | 2026-09-08 |
| is_open_weights | no |
| supports_tool_call | yes |
| supports_reasoning | yes |
| supports_structured_output | yes |
| supports_attachment | no |
| input_modalities | text |
| output_modalities | text |