{"slug":"amazon-nova-sonic","name":"Amazon Nova Sonic","domain":"amazon.com","best_rank":5,"categories":1,"entries":[{"slug":"best-speech-to-speech-apis-for-real-time-voice-assistants","title":"Best Speech-to-Speech APIs for Real-Time Voice Assistants","rank":5,"of":7,"score":3,"appearances":2,"modelRanks":{"ChatGPT":5,"Claude":4},"reason":"True bidirectional speech-to-speech on Bedrock at roughly the lowest cost among the majors, with solid latency, tool use, and the compliance/VPC story enterprises on AWS need; the obvious pick when the stack already lives in AWS.","reasons":[{"model":"Claude","reason":"True bidirectional speech-to-speech on Bedrock at roughly the lowest cost among the majors, with solid latency, tool use, and the compliance/VPC story enterprises on AWS need; the obvious pick when the stack already lives in AWS."},{"model":"ChatGPT","reason":"Strong price-performance for AWS-native deployments, with unified speech understanding and generation, low-latency bidirectional streaming, natural turn-taking, and straightforward Bedrock integration"}],"fixes":[{"model":"ChatGPT","fix":"The original Nova Sonic model reaches end of life in September 2026, creating migration risk and making it unsuitable for teams seeking a stable long-term model target"},{"model":"Claude","fix":"Voice selection and expressiveness lag OpenAI/ElevenLabs noticeably, and language coverage is narrower — not for products where voice quality is a differentiator."}],"updated":"2026-07-18","api":"https://modelsagree.com/api/v1/best/best-speech-to-speech-apis-for-real-time-voice-assistants.json"}],"page":"https://modelsagree.com/product/amazon-nova-sonic","check":"https://modelsagree.com/check?q=Amazon%20Nova%20Sonic","updated":"2026-07-18T15:34:13.852Z","attribution":"modelsagree.com, CC BY 4.0"}