{"data":{"id":"sesame/csm-1b","provider_id":"sesame","name":"Sesame: CSM 1B","modalities":["text","audio"],"context_window":4096,"family":"csm-1b","status":"active","description":"CSM 1B is a conversational speech model from Sesame. It accepts text input and produces English speech output, with voice options spanning conversational and read-speech styles. At 1B parameters, it...","architecture":{"modality":"text->speech","input_modalities":["text"],"output_modalities":["speech"],"tokenizer":"Other","instruct_type":null},"supported_parameters":[],"created_at":1776983168,"canonical_slug":"sesame/csm-1b","catalog_source":"openrouter","host_id":"openrouter","host_name":"OpenRouter","creator_id":"sesame","creator_name":"Sesame","cheapest_provider":"deepinfra","cheapest_provider_name":"DeepInfra","cheapest_price":5.25,"savings_pct":null,"savings_basis":null,"provider":{"id":"sesame","name":"Sesame","website":"https://openrouter.ai/sesame","categories":["text","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":1065,"model_id":"sesame/csm-1b","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/sesame/csm-1b","notes":"OpenRouter output modality is speech. pricing.prompt is \"0.000007\" and pricing.completion is \"0\". The models API has no unit field. Amounts are null.","last_verified_at":"2026-10-08T18:34:18.588Z","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}]}}