Sonar Reasoning Pro

Sonar Reasoning Pro (perplexity) costs $2.00 per 1M input tokens and $8.00 per 1M output tokens, as last published by perplexity.

Sonar Reasoning Pro has a context window of 128,000 tokens (the maximum combined input and output it can handle in a single request).

Sonar Reasoning Pro sits in the large size tier. Size tiers run from micro (small enough to run on a device) through small, medium and large to extra large (frontier flagships), and are assigned from the model's family, naming and limits rather than its price.

Sonar Reasoning Pro can generate up to 4,096 tokens in a single response. Reasoning (thinking) tokens count toward this limit.

Sonar Reasoning Pro's training data runs through September 2025, so it may not know about later events. Coolhand records the cutoff at month precision, since providers often publish only the month.

Sonar Reasoning Pro accepts image and text as input and produces text as output, as recorded in the Coolhand catalog.

No — the weights of Sonar Reasoning Pro have not been released, so it is only available through hosted APIs.

Yes — perplexity deprecated Sonar Reasoning Pro on September 27, 2026. Sonar will be supported until September 27, 2026. Official migration guide provided. Deprecation announced on Perplexity models documentation page.

perplexity retired Sonar Reasoning Pro on September 27, 2026.

Since Sonar Reasoning Pro is deprecated, perplexity customers are moving to Sonar, Sonar Deep Research, and Sonar Pro.

Call GET https://coolhandlabs.com/api/v2/inference_apis?q[source_api_eq]=perplexity&q[model_eq]=sonar-reasoning-pro — free, no API key required, and scoped to just this model since source_api and model together are unique. See https://coolhandlabs.com/docs for the full REST API reference.

Coolhand also tracks Perplexity Sonar Deep Research, Sonar Pro, Sonar, Sonar Deep Research, Sonar Pro, and Sonar Pro Search from perplexity. Some may already be deprecated, so check each model's status alongside its current pricing.