Last refreshed 2026-05-14. Next refresh: weekly.
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.
Setup recipe
Python + curlpip install openaiexport OPENAI_API_KEY=...import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(gpt-realtime-1.5Request example
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="gpt-realtime-1.5",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
- The examples expect OPENAI_API_KEY; rename it only if your application config maps the new variable.
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
Pre-2026 OpenAI Realtime API voice model superseded by GPT Realtime 2. Kept for historical provider coverage only.
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 32k 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.