{"data":{"id":"heygen/avatar-iv","provider_id":"heygen","name":"HeyGen: Avatar IV","modalities":["text","image","audio","video"],"context_window":0,"family":"avatar-iv","status":"active","description":"HeyGen: Avatar IV is an image-to-video model that animates a single photo into an expressive, lip-synced talking-head video. Rather than only matching mouth shapes to words, it interprets the vocal...","architecture":{"modality":"text+image+audio->video","input_modalities":["text","image","audio"],"output_modalities":["video"],"tokenizer":"Other","instruct_type":null},"supported_parameters":[],"created_at":1787595728,"canonical_slug":"heygen/avatar-iv-20260625","catalog_source":"openrouter","host_id":"openrouter","host_name":"OpenRouter","creator_id":"heygen","creator_name":"Heygen","cheapest_provider":"heygen","cheapest_provider_name":"HeyGen","cheapest_price":0,"savings_pct":null,"savings_basis":null,"provider":{"id":"heygen","name":"Heygen","website":"https://openrouter.ai/heygen","categories":["text","image","video","audio"],"docs_url":"https://openrouter.ai/models","notes":"Live OpenRouter feed. Prices are OpenRouter list rates, not a contract with the origin lab.","role":"lab"},"prices":[{"id":850,"model_id":"heygen/avatar-iv","unit":"token","input_per_1m_usd":null,"output_per_1m_usd":null,"flat_usd":null,"currency":"USD","effective_at":"2026-10-08","source_url":"https://openrouter.ai/heygen/avatar-iv","notes":"OpenRouter list rate. Token fields are USD per token converted to per 1M. Flat image, request, and web_search fields are USD per unit and are not rescaled. No positive price in this OpenRouter object, and the id is not a :free SKU. Amounts are null rather than $0.","last_verified_at":"2026-10-08T17:11:32.756Z","source":"openrouter","confidence":"official","cache_read_per_1m_usd":null,"cache_write_per_1m_usd":null,"cache_write_1h_per_1m_usd":null,"pricing_detail":{"unpriced":true},"long_context_override":false}]}}