# sonar-deep-research

Perplexity deprecated the model sonar-deep-research without giving a shutdown date yet.

- API: Perplexity (api.perplexity.ai)
- Model: sonar-deep-research
- Released: February 1, 2025 (models.dev)
- Kind: Model retirement
- Takes effect: no date given yet
- Calls after that day: fail
- Calls it hits: `model sonar-deep-research`
- Source: [models.dev](https://models.dev/api.json#perplexity)
- Verified: November 6, 2026, against Perplexity's own pages
- Page: https://www.okapi.bot/models/perplexity/sonar-deep-research/

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent