Demanding reasoning
Break down a complex question and examine the assumptions behind an answer.
Where it fits.
Stay with a complex question or a project that needs closer attention. Sienta 2.1 works in Eon chat and Codie, with visible activity and changes you review before applying.
Models can make mistakes. Check important answers, and review proposed project changes before applying them.
Code with context
Inspect the relevant files, prepare a change and review what it affects.
A visible process
Follow the plan and tool activity while Codie works through a substantial task.
Work you can return to
Reopen saved project drafts and pick up the work within the task’s remaining limits.
Availability
and practical details.
Available to approved Pro accounts. Requests use your plan’s shared monthly paid-model allowance.Check service status
- Workspace
- Chat and Codie
- Access
- Pro
- Service
- DeepSeek V4.1 Flash through its model provider
- Configured context
- Up to 1,000,000 tokens
- Per-call output
- Up to 23,000 tokens, including reasoning
- Continuation
- When enabled, within task and spending limits