LiteLLMModels

GPT Realtime 2.1 Mini API Pricing

As of October 10, 2026, GPT Realtime 2.1 Mini costs $0.60 per 1M input tokens and $2.40 per 1M output tokens on OpenAI, with cache reads at $0.06 per 1M tokens. It has a 128,000-token context window and returns up to 32,000 tokens per response.

By OpenAIModel ID gpt-realtime-2.1-miniPrices updated Checked
Input
$0.60 / 1M tokens
Output
$2.40 / 1M tokens
Cache read
$0.06 / 1M tokens
Context window
128,000 tokens
Max output
32,000 tokens
Providers
2
Added to LiteLLM
July 8, 2026

GPT Realtime 2.1 Mini pricing by provider

2 listings across 2 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

ProviderModel name in LiteLLMInputOutputCache readContext
OpenAIgpt-realtime-2.1-mini$0.60$2.40$0.06128K
Azure OpenAIazure/gpt-realtime-2.1-mini$0.60$2.40$0.0632K

Other GPT Realtime 2.1 Mini prices on OpenAI

Audio input$10.00 per 1M tokens
Audio output$20.00 per 1M tokens

What GPT Realtime 2.1 Mini costs in practice

1,000 requests with 2,000 input and 500 output tokens each

OpenAI$2.40
Azure OpenAI$2.40

100 long-document requests with 100,000 input and 2,000 output tokens each

OpenAI$6.48
Azure OpenAI$6.48

GPT Realtime 2.1 Mini features

Input: text, image, audio. Output: text, audio.

Use GPT Realtime 2.1 Mini with LiteLLM

Call GPT Realtime 2.1 Mini through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/realtime. LiteLLM tracks the cost of every request at these prices.

Python SDK
from litellm import completion

response = completion(
    model="gpt-realtime-2.1-mini",
    messages=[{"role": "user", "content": "Hello!"}],
)
Proxy config.yaml
model_list:
  - model_name: gpt-realtime-2.1-mini
    litellm_params:
      model: gpt-realtime-2.1-mini
      api_key: os.environ/OPENAI_API_KEY
Call the proxy
curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "gpt-realtime-2.1-mini",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

GPT Realtime 2.1 Mini FAQ

How much does GPT Realtime 2.1 Mini cost?

GPT Realtime 2.1 Mini costs $0.60 per 1M input tokens and $2.40 per 1M output tokens on OpenAI, with cache reads at $0.06 per 1M tokens.

What is the context window of GPT Realtime 2.1 Mini?

GPT Realtime 2.1 Mini has a 128,000-token context window and returns up to 32,000 tokens per response.

Which providers offer GPT Realtime 2.1 Mini?

GPT Realtime 2.1 Mini is available from 2 providers through LiteLLM: OpenAI and Azure OpenAI.

How do I call GPT Realtime 2.1 Mini with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="gpt-realtime-2.1-mini", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/realtime from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

What features does GPT Realtime 2.1 Mini support?

GPT Realtime 2.1 Mini supports function calling, parallel tool calls, audio input and audio output.

When did LiteLLM add GPT Realtime 2.1 Mini?

GPT Realtime 2.1 Mini was added to LiteLLM's model price file on July 8, 2026.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: OpenAI, Azure OpenAI.

Provider pages: OpenAI, Azure OpenAI.