OpenAI pricing
Voice agents from $0.05 per minute; STT from $0.003 per minute.
Last updated · prices checked daily
Voice agent platforms
| Product / tier | $/min |
|---|---|
| gpt-live-1 (speech-to-speech) Bundled models Per-minute session price; backend model and tool usage are charged separately. | $0.05 |
Speech-to-text
| Product / tier | $/min |
|---|---|
| gpt-4o-mini-transcribe (estimated) Token-billed; OpenAI's own per-minute estimate. | $0.003 |
| gpt-transcribe (batch) | $0.0045 |
| gpt-live-transcribe (streaming) | $0.017 |
Text-to-speech
| Product / tier | $/1M chars |
|---|---|
| Text-to-speech No per-character TTS price found on the pricing page. | Unknown |
Price history
| Product | Today | History |
|---|---|---|
| gpt-live-1 (speech-to-speech) Voice agents | $0.05 | 9 checks since 2026-10-20 |
| gpt-live-transcribe (streaming) STT | $0.017 | 9 checks since 2026-10-20 |
| gpt-transcribe (batch) STT | $0.0045 | 9 checks since 2026-10-20 |
| gpt-4o-mini-transcribe (estimated) STT | $0.003 | 9 checks since 2026-10-20 |
| Text-to-speech TTS | Unknown | Tracking since 2026-10-20 |
Compare OpenAI
Vapi vs OpenAIRetell AI vs OpenAIBland AI vs OpenAIElevenLabs vs OpenAIDeepgram vs OpenAICartesia vs OpenAIUltravox vs OpenAILiveKit Agents vs OpenAIOpenAI vs AssemblyAIOpenAI vs Google CloudOpenAI vs Amazon (Transcribe / Polly)OpenAI vs Microsoft Azure SpeechOpenAI vs SpeechmaticsOpenAI vs Rev AIOpenAI vs GladiaOpenAI vs SonioxOpenAI vs Fish AudioOpenAI vs InworldOpenAI vs Rime