[Perplexity](/ai-gateway/models/labs/perplexity) # Sonar Reasoning Pro Sonar Reasoning Pro combines the deepest web retrieval in the Sonar family with chain-of-thought reasoning to return well-sourced, structured answers within a context window of 127K tokens. Your use is subject to Perplexity's [Terms](https://www.perplexity.ai/terms) & [Privacy](https://www.perplexity.ai/privacy) Policies. ReasoningWeb SearchVision (Image) [Use with AI Gateway](https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Futm_source%3Dgateway-model-page%26utm_campaign%3Dai-gateway-models&title=Get+Started+with+Vercel+AI+Gateway) [View docs](https://vercel.com/docs/ai-gateway) AI SDKChat CompletionsMessagesResponses ``` 1import { streamText } from 'ai' 2 3const result = streamText({ 4 model: 'perplexity/sonar-reasoning-pro', 5 prompt: 'Why is the sky blue?' 6}) ``` [Read docs](https://vercel.com/docs/ai-gateway/sdks-and-apis/ai-sdk) [Overview](/ai-gateway/models/sonar-reasoning-pro) [API](/ai-gateway/models/sonar-reasoning-pro/api) [About](/ai-gateway/models/sonar-reasoning-pro/about) [Providers](/ai-gateway/models/sonar-reasoning-pro/providers) [Throughput](/ai-gateway/models/sonar-reasoning-pro/throughput) [Latency](/ai-gateway/models/sonar-reasoning-pro/latency) [Uptime](/ai-gateway/models/sonar-reasoning-pro/uptime) [Status](/ai-gateway/models/sonar-reasoning-pro/status) [Similar](/ai-gateway/models/sonar-reasoning-pro/similar) [FAQ](/ai-gateway/models/sonar-reasoning-pro/faq) ## [Copy link to heading](#playground)Playground Try out Sonar Reasoning Pro by Perplexity. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days. ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75)Sonar Reasoning Pro ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=96&q=75) Sonar Reasoning Pro ## [Copy link to heading](#providers)Providers Route requests across multiple providers. Copy a provider slug to set your preference. Visit the [docs](/docs/ai-gateway/provider-options) for more info. Using a provider means you agree to their terms, listed under Legal. | Provider | | --- | | Context | Max Output | Latency | Throughput | Input | Output | Cache | Web Search | Capabilities | ZDR | No Training | Free Tier | Release Date | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) [Perplexity](/ai-gateway/models/providers/perplexity) Legal:[Terms](https://www.perplexity.ai/terms)•[Privacy](https://www.perplexity.ai/privacy) | 127K | 8K | 8.0s | 123tps | $2/M | $8/M | | $6/K\*+2 more | | | | | 02/19/2025 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ## [Copy link to heading](#throughput)Throughput24 hours 1W 1D P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the [docs](https://vercel.com/docs/ai-gateway/models-and-providers/metrics) for more info. ## [Copy link to heading](#latency)Latency24 hours 1W 1D P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the [docs](https://vercel.com/docs/ai-gateway/models-and-providers/metrics) for more info. ## [Copy link to heading](#uptime)Uptime24 hours 1W 1D 1H Direct request success rate on AI Gateway and per-provider. Visit the [docs](https://vercel.com/docs/ai-gateway/models-and-providers/uptime) for more info. 1W 1D 1H ## [Copy link to heading](#more-models-by-perplexity)More models by Perplexity All Text Embed | Model | | --- | | Context | Latency | Throughput | Input | Output | Cache | Web Search | Capabilities | Providers | ZDR | No Training | Free Tier | Release Date | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) [perplexity/pplx-embed-v1-4b](/ai-gateway/models/pplx-embed-v1-4b) | 32K | | | $0.03/M | | | — | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) | | | | 02/26/2026 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) [perplexity/pplx-embed\-v1-0.6b](/ai-gateway/models/pplx-embed-v1-0.6b) | 32K | | | $0.004/M | | | — | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) | | | | 02/26/2026 | | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) [perplexity/sonar](/ai-gateway/models/sonar) | 127K | 2.3s | 90tps | $1/M | $1/M | | $5/K\*+2 more | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) | | | | 02/19/2025 | | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) [perplexity/sonar-pro](/ai-gateway/models/sonar-pro) | 200K | 2.3s | 152tps | $3/M | $15/M | | $6/K\*+2 more | | ![perplexity logo](/vc-ap-vercel-marketing/_next/image?url=https%3A%2F%2F7nyt0uhk7sse4zvn.public.blob.vercel-storage.com%2Fdocs-assets%2Fstatic%2Fdocs%2Fai-gateway%2Flogos%2Fperplexity.png&w=48&q=75) | | | | 02/19/2025 | | ## [Copy link to heading](#about-sonar-reasoning-pro)About Sonar Reasoning Pro Sonar Reasoning Pro is the full search-augmented reasoning stack from Perplexity. It combines the deep, multi-source web retrieval of Sonar Pro with chain-of-thought reasoning, producing answers that are both broadly sourced and logically structured. Perplexity describes benchmark results and search modes for this model in its announcement. See https://sonar.perplexity.ai for methodology, pricing context, and product details. The practical impact shows up on hard research questions. Queries that require reconciling conflicting sources, reasoning about implications of recent developments, or building a structured argument from scattered web evidence use both retrieval breadth and reasoning depth. The model searches more sources than Sonar Reasoning, applies more deliberation, and returns longer, more structured responses. The context window of 127K tokens supports extended research sessions where accumulated context from prior turns informs later searches and reasoning. ## [Copy link to heading](#what-to-consider-when-choosing-a-provider)What To Consider When Choosing a Provider - Configuration: Sonar Reasoning Pro has the highest per-token cost and longest response times in the Sonar family. Use AI Gateway's cost tracking and latency monitoring to profile requests. Confirm the quality gain matches your budget. Web search calls bill separately (N/A per thousand when listed for this model). - Zero Data Retention: Zero Data Retention is offered on a per-provider and model basis. See the [documentation](https://vercel.com/docs/ai-gateway/security-and-compliance/zdr) for details. - Authentication: AI Gateway authenticates requests using an [API key](https://vercel.com/docs/ai-gateway/authentication-and-byok#api-key-authentication) or [OIDC token](https://vercel.com/docs/ai-gateway/authentication-and-byok#oidc-token-authentication). You do not need to manage provider credentials directly. ## [Copy link to heading](#when-to-use-sonar-reasoning-pro)When to Use Sonar Reasoning Pro ### Best for - Deep research and analysis: Requires both broad source retrieval and multi-step logical reasoning over the evidence - Strategic decision support: Analysis quality depends on both the breadth of sources consulted and the rigor of reasoning applied - Complex competitive intelligence: Needs to reconcile conflicting information from multiple sources into one assessment - Policy and regulatory analysis: Requires structured reasoning across evolving standards, guidelines, and jurisdictional differences - High-stakes factual analysis: Thoroughness of both retrieval and reasoning affects decision quality ### Consider alternatives when - Straightforward queries: Base Sonar or Sonar Pro answer faster at lower cost without deep reasoning - Hard latency constraints: Combined deep search and reasoning produces the longest response times in the Sonar family - Tight per-request budget: Broad retrieval and extended reasoning generate the most output tokens - Closed-domain problems: A standalone reasoning model fits better when no web grounding is needed ## [Copy link to heading](#conclusion)Conclusion Sonar Reasoning Pro fits when both the breadth of evidence and the depth of reasoning drive answer quality. It brings Perplexity's search and reasoning capability into one API call. It's the Sonar option with the most combined retrieval and reasoning depth for research, analysis, and decision support.