Is Perplexity Sonar Reasoning Pro deprecated?
Yes. Sonar Reasoning Pro is deprecated and Perplexity shuts it down on 2026-09-27 — in 6 days.
What kind of model is this?
Tags describe what Sonar Reasoning Pro takes in, what it is built for and how you can get it. Modality, access and language tags follow Perplexity's own documentation; tier and use-case tags are our reading of the line-up.
- Modality
- Use case
- Tier
- Access
Specifications
- Input price
- $2.00 / M tokens
- Output price
- $8.00 / M tokens
- Price band
- Premium
- Context window
- 128K tokens
- Max output
- unknown
- Input
- Text
- Output
- Text
- Knowledge cutoff
- unknown
- Tool use
- unknown
- Structured output
- unknown
- Weights licence
- not published
- Model maker
- Perplexity
“unknown” means the figure has not been published, or we have not verified it yet — never that the answer is no. “not published” under the weights licence means this model is not offered with downloadable weights. The price band is ours: it bands the blended price (three parts input to one part output) as budget (≤ $0.50), standard (≤ $3), premium (≤ $12) or flagship.
Lifecycle
- Released unknown
- Deprecated not announced Perplexity has not published the date this happened
- Retired in 6 days
What is it good for?
No editorial profile for this model yet. The specifications above come from Perplexity's own documentation and the suggestions below are derived from the data — shared tags, tier and price band — not written by hand.
What to use instead of Sonar Reasoning Pro
-
GPT-5.1-Codex-Max Derived
Alternative from Microsoft Azure AI Foundry, same tier (frontier), similar price; shares chat, reasoning and search.
$1.25 in · $10.00 out / M tokens 400K context
-
GPT-5.6 sol Derived
Alternative from Microsoft Azure AI Foundry, same tier (frontier), similar price; shares chat, reasoning and search.
$5.00 in · $30.00 out / M tokens 1.1M context
-
GPT-5.6 Sol Derived
Alternative from OpenAI, same tier (frontier), similar price; shares chat, reasoning and search.
$4.00 in · $20.00 out / M tokens 1.1M context
-
GPT-5 pro Derived
Alternative from Microsoft Azure AI Foundry, same tier (frontier), close in price; shares chat, reasoning and search.
$15.00 in · $120.00 out / M tokens 400K context
-
GPT-5.4 pro Derived
Alternative from Microsoft Azure AI Foundry, same tier (frontier), close in price; shares chat, reasoning and search.
$30.00 in · $180.00 out / M tokens 1.1M context
Derived suggestions are ranked from the data — shared tags, the same tier and a comparable price band — not from benchmark scores. Check the capability fit yourself: we track lifecycle, price and specifications.
Sources
- docs.perplexity.ai https://docs.perplexity.ai/docs/sonar/models/sonar-reasoning-pro
- docs.perplexity.ai https://docs.perplexity.ai/docs/sonar/models
- docs.perplexity.ai https://docs.perplexity.ai/docs/getting-started/pricing
- docs.perplexity.ai https://docs.perplexity.ai/docs/agent-api/migrate-from-sonar/overview
Verified against the source on . Dataset snapshot . Providers can change a date without notice — the link above is always the final word.
Common questions
- Is Sonar Reasoning Pro deprecated?
- Yes. Sonar Reasoning Pro is deprecated and Perplexity shuts it down on 2026-09-27 — in 6 days.
- When does Sonar Reasoning Pro shut down?
- Perplexity has announced 2026-09-27 as the shutdown date for Sonar Reasoning Pro.
- What does Sonar Reasoning Pro cost?
- $2.00 per million input tokens and $8.00 per million output tokens, as last verified on 2026-09-10.
- What can I use instead of Sonar Reasoning Pro?
- Active alternatives include Microsoft Azure AI Foundry GPT-5.1-Codex-Max, Microsoft Azure AI Foundry GPT-5.6 sol, OpenAI GPT-5.6 Sol.