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Models / Perplexity

Sonar Reasoning

Retired

DEPRECATED and removed from the API on 2025-12-15 per the official changelog; calls should migrate to sonar-reasoning-pro (enhanced multi-step reasoning with web search). The current models page (docs.perplexity.ai/getting-started/models) no longer lists it. Historical context window 128K. Historical token pricing was approx $1 input / $5 output per 1M while active, but this is NOT confirmed on a current official page (pricing page no longer lists it), so left null rather than guessed. Confirmed via changelog and the sonar-reasoning-pro model card (which names it as the deprecated predecessor)

Lifecycle warning

This model has been retired. Scheduled shutdown: 15 Dec 2025. Recommended migration: sonar-reasoning-pro.

Provider
Perplexity
Status
Retired
Input price
—
Output price
—
Cached input
—
Blended price
—
Context window
128,000 tokens (128K)
Max output
—
Modality
text
Knowledge cutoff
—
Released
Jan 2025
API string
sonar-reasoning

Source: Perplexity official documentation ↗

See also

Compare Sonar Reasoning with…

Sonar Reasoning vs Claude Opus 4.8→

— vs $10 blended /M

Sonar Reasoning vs Claude Opus 4.7→

— vs $10 blended /M

Sonar Reasoning vs Claude Opus 4.6→

— vs $10 blended /M

Sonar Reasoning vs Claude Opus 4.5→

— vs $10 blended /M