Matrix/Platforms/OpenAI Realtime API
OpenAI Realtime API
OpenAI · Speech-to-speech model API · Official site
3 Yes3 Partial1 No4 Unknown
| Feature | Status | What the vendor says | Source | Checked |
|---|---|---|---|---|
| Price per minute | Partial | Per token gpt-realtime-2.1 audio $32 in / $64 out per 1M tokens; mini $10/$20; gpt-live-1 $0.05/min. | Source | 2026-11-04 |
| Latency claim | Unknown | No statement found on the official pages we checked. | — | 2026-11-04 |
| Languages | Unknown | No statement found on the official pages we checked. | — | 2026-11-04 |
| Phone numbers & telephony | Yes | SIP Connect phone calls over SIP. | Source | 2026-11-04 |
| Bring your own LLM | No | Single model The model is the agent; you can't swap in another LLM. | Source | 2026-11-04 |
| Custom / BYO voice | Partial | Custom voices (eligible) Prompt-to-voice for GPT-Live is generally available; voices from recordings work with the Realtime API but are "limited to eligible customers". | Source | 2026-11-04 |
| Interruption handling | Yes | VAD + truncation Docs: the agent handles audio turns, tools and interruptions inside the session; VAD guide covers turn detection. | Source | 2026-11-04 |
| Tool calling & MCP | Yes | Remote MCP Realtime sessions can use remote MCP servers. | Source | 2026-11-04 |
| HIPAA / BAA | Partial | BAA (by agreement) BAA-eligible endpoints for customers who have signed OpenAI's Business Associate and Healthcare Addendum. | Source | 2026-11-04 |
| SOC 2 | Unknown | No statement found on the official pages we checked. | — | 2026-11-04 |
| Free tier / credits | Unknown | No statement found on the official pages we checked. | — | 2026-11-04 |
Latency, compliance and language figures are the vendor's own claims. We link them; we don't test them.
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