Perplexity changed its API changelog

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+ModelsAgent APISearchDeprecationRouterFeaturesPresetsFiltersPricingMCPMultimodalSecuritySDKToolsFinanceIntegrationsAWSBillingEmbeddingsDocsPro SearchPlaygroundFile AttachmentsAPI KeysCost TrackingUsageFinancialAcademicReasoningAsyncBreaking ChangeOrganizationPortalImagesAccessStructured OutputsCitationsRate Limits
 Looking ahead? Check out our Feature Roadmap to see what’s coming next.
 
+September 2026
+Agent APIRouterModels
+GLM 5.3 FlashThe Agent API and Router API now support perplexity/glm-5.3-flash at $0.15 per million uncached-input tokens, $0.03 per million cached-input tokens, and $0.50 per million output tokens. See the Agent API Models reference or the Router model catalog.
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 August 2026
 Agent APIRouterModels
 GLM 5.3The Agent API and Router API now support perplexity/glm-5.3 at $1.40 per million uncached-input tokens, $0.26 per million cached-input tokens, and $4.40 per million output tokens. See the Agent API Models reference or the Router model catalog.
 
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 Fast preset updatedThe Agent API fast preset now uses openai/gpt-5.6-luna with minimal reasoning effort and priority processing. Dynamic fast preset requests pick up the change automatically. If you use a frozen configuration, update the model and reasoning effort and set service_tier to priority. Priority processing uses 2× the model’s standard token prices.
 
 August 2026
 Agent APIRouterModels
-Gemini 3.7 FlashThe Agent API and Router API now support google/gemini-3.7-flash at launch pricing of $0.375 per million input tokens, $0.0375 per million cached-input tokens, and $1.875 per million output tokens. See the Agent API Models reference.
+Gemini 3.7 FlashPricing for google/gemini-3.7-flash increased on August 27, 2026 to $0.75 per million input tokens, $0.075 per million cached-input tokens, and $3.75 per million output and reasoning tokens. See the Agent API Models reference.
 
 August 2026
 Agent APIModels
 Grok 4.6The Agent API now supports xai/grok-4.6, xAI’s latest flagship reasoning and agentic model. See pricing in the Agent API Models reference.