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gpt-realtime

OpenAI · chat model

gpt-realtime is listed here as a chat model from OpenAI. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.

Input
$4.0000 / 1M tokens
Output
$16.0000 / 1M tokens
Cached input
$0.4000 / 1M tokens
Context
4.1K
Compare similar models Open a side-by-side table using this route and the closest match from the current catalog. Estimate workload cost Use token counts, request volume, and cache assumptions to check a realistic monthly bill. Explore benchmarks Review benchmark rows by family and benchmark label without cross-benchmark ranking. Check data sources See how pricing data is generated and what still needs provider verification.

Quick read

Best for

Use this page when you need a fast view of cost, context size, and supported features before testing the model in your own workload.

Things to verify

Always check the provider page for discounts, cache pricing, region rules, and any model limits that may not appear in public metadata.

Pricing

Item Price
Input
$4.0000 / 1M tokens
Output
$16.0000 / 1M tokens
Cached input
$0.4000 / 1M tokens
Audio input
$32.0000 / 1M tokens
Audio output
$64.0000 / 1M tokens
Image input
$5.0000 / 1M tokens
Embedding
$4.0000 / 1M tokens

Token limits

Context window
4.1K
Max input tokens
32.0K
Max output tokens
4.1K
Max tokens
4.1K

Capabilities

Capability Supported
Vision —
Function calling ✅
Parallel function calling ✅
Tool choice ✅
Prompt caching —
Reasoning —
Response schema —
System messages ✅
Audio input ✅
Audio output ✅
Web search —
PDF input —
Video input —

Sources

Source links
Pricing data LiteLLM model cost map
Synced at 2026-05-28

Similar models

This list is ranked by overall similarity. Use filters to emphasize the lens that matters most for the replacement you are making.

Comparing from
Model Cost Input shape Features Context Why it is close
gpt-realtime
OpenAI
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Current model
Reference row

Overall blends cost, modality overlap, capabilities, and context.

Model Cost Input shape Features Context Why it is close
gpt-realtime-2025-08-28
Azure
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 76%
gpt-realtime-1.5-2026-02-23
Azure
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 76%
gpt-realtime-1.5
OpenAI
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Same provider
Overall 76%
gpt-realtime-2
OpenAI
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Same provider
Overall 76%
gpt-realtime-2025-08-28
OpenAI
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Same provider
Overall 76%
gpt-4o-realtime-preview-2024-12-17
Azure
In $5.0000 / 1M tokens
Out $20.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 72%
gpt-4o-realtime-preview-2024-10-01
Azure
In $5.5000 / 1M tokens
Out $22.0000 / 1M tokens
audiotext
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 71%
gpt-4o-realtime-preview-2024-12-17
Azure
In $5.5000 / 1M tokens
Out $22.0000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 71%
gpt-4o-realtime-preview-2024-10-01
Azure
In $5.0000 / 1M tokens
Out $20.0000 / 1M tokens
audio
Output: audio
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 64%
gpt-4o-mini-realtime-preview-2024-12-17
Azure
In $0.6600 / 1M tokens
Out $2.6400 / 1M tokens
audiotext
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 59%
gpt-realtime-mini-2025-10-06
Azure
In $0.6000 / 1M tokens
Out $2.4000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Partial I/O overlap
Overall 59%
gpt-realtime-mini
OpenAI
In $0.6000 / 1M tokens
Out $2.4000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Same provider
Overall 59%
gpt-realtime-mini-2025-10-06
OpenAI
In $0.6000 / 1M tokens
Out $2.4000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Same provider
Overall 59%
gpt-realtime-mini-2025-12-15
OpenAI
In $0.6000 / 1M tokens
Out $2.4000 / 1M tokens
Output: audio, text
Function callingParallel function callingTool choiceSystem messages
4.1K
Same provider
Overall 59%
ft:o4-mini-2025-04-16
OpenAI
In $4.0000 / 1M tokens
Out $16.0000 / 1M tokens
Output: unknown
Function callingTool choice
100.0K
Same provider
Overall 26%