Perplexity

AI search and answer platform for developers.

Perplexity API Changelog Monitoring

Perplexity is an AI search and answer platform for developers, offering APIs for search, research, and cited responses. This Perplexity API Changelog Monitoring page helps teams track product changes quickly so they can keep integrations, internal tools, and customer-facing features aligned with the latest platform behavior.

Strong Perplexity API Changelog Monitoring helps teams catch model updates, API changes, deprecations, pricing adjustments, and new developer features before they create downstream issues. It also supports better release planning by giving engineering and product teams a shared view of what changed and what may require action.

The benefit of Perplexity API Changelog Monitoring is simple: your team gets a repeatable way to review updates, evaluate integration risk, and respond before upstream platform changes affect production systems. Perplexity API changelog and developer updates

Perplexity API down?

Perplexity API down? For live availability checks, refer to Perplexity's official status or support channels. This page is focused on Perplexity API Changelog Monitoring, helping you follow releases, feature announcements, and breaking changes that may affect your integration over time.

Recent changes

Showing the last 10 changes from this feed.

10-17-2026

October 2026

Older models removed from the model docs; GPT-6 Astra and DeepSeek V4 Pro added The following models are no longer listed in the Agent API model docs, pricing calculator, or examples: Anthropic: anthropic/claude-opus-4-8, anthropic/claude-opus-4-7, anthropic/claude-opus-4-6, anthropic/claude-opus-4-5, anthropic/claude-sonnet-4-6, anthropic/claude-sonnet-4-5, and anthropic/claude-haiku-4-5 Google: google/gemini-3-flash-preview, google/gemini-3.1-pro-preview, google/gemini-3.1-flash-lite, google/gemini-3.5-flash, and google/gemini-3.5-flash-lite xAI: xai/grok-4.3, xai/grok-4.20-reasoning, xai/grok-4.20-non-reasoning, and xai/grok-4.20-multi-agent For new integrations, use anthropic/claude-opus-5-5, anthropic/claude-sonnet-5-5, anthropic/claude-haiku-5-5, google/gemini-4-argon, google/gemini-3.8-flash, or xai/grok-4.7. The model docs now also list openai/gpt-6-astra ($10.00 per million input tokens and $50.00 per million output tokens up to 272k input tokens, with flex and priority tiers) and perplexity/deepseek-v4-pro-0813 ($1.32 per million input tokens, $0.044 per million cached input tokens, and $3.96 per million output tokens), which is also available through the Orchestrator API. See the Agent API Models reference.

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10-16-2026

October 2026

Decisions API: pplx-decider-v1.2 and pplx-decider-flash-v1.2 pplx-decider-v1.2 replaces pplx-decider-v1.1-27b as the 27B decision model, at $0.02 per million input tokens. pplx-decider-flash-v1.2 is a new 4B decision model at $0.01 per million input tokens. Both accept text and images and use the same request limits. Output tokens stay free. Use pplx-decider-latest or pplx-decider-flash-latest to follow the newest version of each model. perplexity/pplx-decider-latest and perplexity/pplx-decider-flash-latest are also accepted. Requests that name pplx-decider-v1.1-27b or pplx-decider-v1-27b continue to work and select pplx-decider-v1.2. See When to use each and Pricing.

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10-15-2026

October 2026

NVIDIA Nemotron 3.5 Super The Agent API now supports perplexity/nemotron-3.5-super-120b-a12b at $0.20 per million input tokens, $0.04 per million cached input tokens, and $0.50 per million output tokens. It has a 1,048,576-token context window, returns up to 131,072 output tokens, and accepts text input only. It replaces perplexity/nemotron-3-ultra-550b-a55b, which is no longer listed in the Agent API or Orchestrator API model docs. See the Agent API Models reference.

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10-09-2026

October 2026

Decisions API: pplx-decider-v1.1-27b replaces v1 pplx-decider-v1.1-27b replaces pplx-decider-v1-27b as the Decisions API model. Input now costs $0.02 per million tokens, down from $0.04. Use pplx-decider-v1.1-27b in new requests. Requests that still name pplx-decider-v1-27b continue to work and bill at the same $0.02 rate. See Pricing and the Decisions API quickstart.

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10-07-2026

October 2026

Claude Haiku 5.5 The Agent API now supports anthropic/claude-haiku-5-5. Requests with more than 100k input tokens use higher rates. See the Agent API Models reference.

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10-05-2026

October 2026

Low, medium, and high presets use Fast Search The Agent API low, medium, and high presets now use Fast Search (search_type: "fast") for web_search, matching the fast preset. web_search calls made under these presets drop from $2.50 to $1.00 per 1,000 invocations, and search is about 800 ms faster. The xhigh preset is unchanged and continues to use standard web search. Models, prompts, tool budgets, and step limits are unchanged. To keep standard web search under any preset, set search_type: "web" on the web_search tool. See Agent API Web Search.

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09-29-2026

September 2026

Claude Sonnet 5.5 The Agent API now supports anthropic/claude-sonnet-5-5. See the Agent API Models reference.

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09-28-2026

September 2026

xhigh preset uses Claude Opus 5.5 The Agent API xhigh preset now uses Claude Opus 5.5: Preset Previous model New model xhigh openai/gpt-5.6-sol anthropic/claude-opus-5-5 Prompts, reasoning effort, tools, token budgets, and step limits are unchanged.

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09-25-2026

September 2026

Low, medium, and high presets use GPT-6 The Agent API low, medium, and high presets now use the GPT-6 model family: Preset Previous model New model low openai/gpt-5.6-luna openai/gpt-6-luna medium openai/gpt-5.6-luna openai/gpt-6-luna high openai/gpt-5.6-sol openai/gpt-6-sol Prompts, reasoning effort, tools, token budgets, and step limits are unchanged.

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09-24-2026

September 2026

Fast Search Set search_type: "fast" on the Search API or the Agent API web_search tool to use a lower-latency search path. Fast Search costs $1.00 per 1,000 Search API requests or web_search invocations, with model tokens billed separately for Agent API. Set search_type: "web" for standard web search. See Search API Fast Search or Agent API Web Search.

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