Migrate off Sonar Reasoning
RetiredSonar Reasoning has been retired and shut down on 15 Dec 2025. Perplexity's official replacement is Sonar Reasoning Pro. The cheapest comparable model we track is Llama 3.1 8B Instruct (Meta) at $0.022 per 1M tokens blended.
Last verified: 13 Aug 2026 · sourced from official provider documentation
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Sonar Reasoning → Sonar Reasoning Pro
| Spec | Sonar Reasoning | Sonar Reasoning Pro |
|---|---|---|
| Status | Retired | GA |
| Blended price /1M | — | $3.50 |
| Input / output /1M | — | $2 / $8 |
| Context window | 128K | 128K |
| Max output | — | — |
| Modality | text | text |
| Knowledge cutoff | — | — |
API string was sonar-reasoning → switch to sonar-reasoning-pro. See Sonar Reasoning Pro's full spec sheet →
Budget-friendly replacements for Sonar Reasoning
Generally-available models that match Sonar Reasoning's capabilities (and at least half its 128K context), ranked by blended price. Every number is computed from official catalog prices.
| Model | Blended /1M | Input / output | Context |
|---|---|---|---|
| Llama 3.1 8B Instruct Meta | $0.022 | $0.02 / $0.03 | 128K |
| Amazon Nova Micro Amazon | $0.061 | $0.035 / $0.14 | 128K |
| Command R7B Cohere | $0.066 | $0.037 / $0.15 | 128K |
Migrating off Sonar Reasoning
What replaces Sonar Reasoning?
Perplexity's recommended migration for Sonar Reasoning is Sonar Reasoning Pro. The cheapest comparable model in our catalog is Llama 3.1 8B Instruct (Meta) at $0.022/1M blended.
Is Sonar Reasoning still available?
No — Sonar Reasoning has been retired (shut down 15 Dec 2025) and is no longer available via Perplexity's API.
What is the cheapest alternative to Sonar Reasoning?
Llama 3.1 8B Instruct (Meta) is the cheapest generally-available alternative we track that matches Sonar Reasoning's capabilities, at $0.02 per 1M input and $0.03 per 1M output tokens ($0.022/1M blended).
Browse the full deprecation watch → or see Sonar Reasoning's full spec sheet →
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