AI Model Watch
Models / Perplexity

Sonar Reasoning Pro

GA

Precise reasoning model with Chain-of-Thought; emits a <think> reasoning section before the answer. 128K context. Token pricing $2/$8 per 1M in/out. Per-request search fee NOT in token price: $6/$10/$14 per 1,000 requests for low/medium/high search context (pricing page). Successor to the now-removed 'sonar-reasoning'. Image input with structured outputs not supported in thinking models. Max output tokens and knowledge cutoff not published. Exact release date not published in docs. Pricing page fetched 2026-06-28.

Sonar Reasoning Pro by Perplexity costs $2 per 1M input tokens and $8 per 1M output tokens ($3.50/1M blended), with a 128K (128.000-token) context window. It is generally available (GA).

Last verified: 13 Aug 2026 · sourced from official provider documentation

Provider
Perplexity
Status
GA
Input price
$2 / 1M tokens
Output price
$8 / 1M tokens
Cached input
—
Blended price
$3.50 / 1M tokens
Context window
128.000 tokens (128K)
Max output
—
Modality
text
Open weights
No — API only
Knowledge cutoff
—
Released
—
API string
sonar-reasoning-pro

Source: Perplexity official documentation ↗

See also

Compare Sonar Reasoning Pro head-to-head

Sonar Reasoning Pro vs Sonar Pro→

$3.50 vs $6 blended /M · same family

Sonar Reasoning Pro vs Sonar→

$3.50 vs $1 blended /M · same family

FAQ

Sonar Reasoning Pro — questions & answers

How much does Sonar Reasoning Pro cost?

Sonar Reasoning Pro is priced at $2 per 1M input tokens and $8 per 1M output tokens ($3.50/1M blended at a 3:1 input-to-output ratio).

What is the context window of Sonar Reasoning Pro?

Sonar Reasoning Pro has a 128.000-token context window (128K).

Is Sonar Reasoning Pro deprecated?

No — Sonar Reasoning Pro is generally available (GA) and not currently scheduled for deprecation or retirement in our tracker.

Does Sonar Reasoning Pro support image or vision input?

Our catalog lists Sonar Reasoning Pro's modalities as text; image/vision input is not among them.

Can I self-host Sonar Reasoning Pro?

No — Sonar Reasoning Pro is proprietary. Its weights are not publicly released, so it is available only through Perplexity's API (or hosted partners), not for self-hosting.

What is the API model string for Sonar Reasoning Pro?

The API model identifier for Sonar Reasoning Pro is "sonar-reasoning-pro" when calling Perplexity's API.