Why use gpt-realtime-1.5 on OpenAI API?
OpenAI API offers gpt-realtime-1.5 with pay-as-you-go pricing at $4.00/1M input tokens. OpenAI is a leading AI research and deployment company dedicated to developing safe and beneficial artificial general intelligence (AGI) for humanity.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $4.00 |
| Output tokens | $16.00 |
| Image input | $5.00 |
| Audio input | $32.00 |
Capabilities
About gpt-realtime-1.5
Best voice model for audio in / audio out in the Realtime API. Replaces deprecated gpt-4o-realtime-preview models (shut down May 7, 2026). Supports text, audio, and image inputs.
FAQ
What does gpt-realtime-1.5 cost on OpenAI API?
On OpenAI API, gpt-realtime-1.5 costs $4.00 per 1M input tokens and $16.00 per 1M output tokens.
What is the context window for gpt-realtime-1.5 on OpenAI API?
gpt-realtime-1.5 supports a 32,000 token context window on OpenAI API.
What API model ID do I use for gpt-realtime-1.5 on OpenAI API?
Use the model ID gpt-realtime-1.5 when calling OpenAI API's API.
Who created gpt-realtime-1.5?
gpt-realtime-1.5 was created by OpenAI as part of the GPT Realtime model family.
Is gpt-realtime-1.5 open source?
gpt-realtime-1.5 is not open source; the seed data lists it as proprietary.