{"uid":"cap_h2XhXo6qPyUNe18g0Oqm4","slug":"heygen-audio-models-listing-a2e9fe1b","name":"HeyGen Audio Models Listing","description":"Speech and transcription models this service prices, with prices per unit, voices and an example request","url":"https://heygen.mpp.tempo.xyz/v1/audio/models?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["tts","speech","avatar","openrouter","ai"],"displayCostAmount":"0","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"unprobed","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"free","summary":"Free","primary":null,"accepted":[]},"paymentMethods":[],"brandName":"HeyGen","brandSlug":"heygen-mpp","brandBaseUrl":"https://www.heygen.com","brandDocsUrl":"https://openrouter.ai","whatItDoes":"Returns the list of speech and transcription models available through HeyGen via OpenRouter, including prices per unit, available voices, and example requests","exampleAgentPrompt":"Show me all the speech and transcription models available on HeyGen right now, including their prices per unit and the voices I can choose from.","exampleUseCases":[{"title":"Picking cheapest TTS model","prompt":"Before I generate audio, show me all the HeyGen speech models and their per-character prices so I can pick the most cost-effective one."},{"title":"Discovering available voices","prompt":"What voices does HeyGen offer across its audio models? I want to know all the options before deciding which voice to use for my narration."},{"title":"Building model selector UI","prompt":"I need to populate a dropdown with all HeyGen audio models and their pricing — can you fetch the current list including example request formats?"}],"resultDescription":"A structured list of speech and transcription models offered by HeyGen via OpenRouter, each entry including the model identifier, price per unit (e.g. per character or per second), available voice options, and an example API request showing how to invoke that model.","failureModes":["Service unavailable or network timeout returns an error response with no model data","Empty model list if HeyGen temporarily removes all models from the pricing feed","Stale pricing data if the underlying OpenRouter catalog has not refreshed recently"],"whenToPreferThis":"Use this endpoint when you need to discover what HeyGen audio/speech models are currently available and their live pricing before submitting a speech generation request. Prefer this over hardcoding model names or prices, as the catalog and pricing can change. This is the right starting point before calling the HeyGen Speech generation endpoint.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T06:37:59.763Z","isFirstParty":false,"canonicalSlug":"heygen-audio-models-listing-a2e9fe1b"}