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GPT Realtime Mini


GPT Realtime Mini is OpenAI logoOpenAI's language model with a 128K context window and up to 4K output tokens, available from 2 providers, starting at $0.600 / 1M input and $2.40 / 1M output. A cost-efficient realtime model capable of responding to audio and text inputs over WebRTC, WebSocket, or SIP connections.
Spec
Canonical IDopenai-gpt-realtime-mini
TypeLanguage
StatusActive
CreatorOpenAIOpenAI
Providers
Context Window128K tokens
Max Output4K tokens
Input ModalitiesAudioImageText
Output ModalitiesAudioText
Release Date · 6 months ago
Knowledge Cutoff

Capabilities

Input3/5
Text
Image
Audio
Video·
PDF·
Output2/5
Text
Image·
Audio
Video·
Embedding·
Capabilities2/13
Reasoning·
Adaptive Reasoning·
Function Calling
Parallel Function Calling
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Audio In
$ / 1M
Audio Out
$ / 1M
Azure AI Foundry logo
Azure AI Foundry
gpt-realtime-mini-2025-10-06
$0.600$2.40$0.060$10.00$20.00
OpenAI logo
OpenAI
gpt-realtime-mini
$0.600$2.40$0.060$10.00$20.00

Cost Calculator

Preset:
Compares every provider & tier in USD

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-5.4 Mini1.1M$0.750$4.50Available
GPT-5 Image Mini400K$2.50$2.00Available
GPT-5 Mini400K$0.250$2.00Available
GPT-4.1 Mini1.0M$0.400$1.60Deprecating
GPT-4o mini Transcribe16K$0.150$0.600Available
GPT-4o mini TTS$0.150$0.600Available
GPT-4o Mini Search Preview128K$0.150$0.600Available
GPT-4o mini Audio128K$0.150$0.600Available
GPT-4o mini Realtime128K$0.150$0.600Available
GPT-4o Mini131K$0.150$0.600Available
GPT Realtime Mini128K$0.600$2.40Current

Other models

ModelTierReleasedContextInput / 1MOutput / 1M
GPT-5.4 NanoNano1.1M$0.200$1.25
GPT-5.41.1M$2.50$15.00
GPT-5.4 ProPro1.1M$30.00$180.00
GPT-5.4 3.51.1M
GPT-5.4 Pro 3.5Pro1.1M
GPT-5.3 Chat128K$1.75$14.00
GPT-5.3 Codex400K$1.75$14.00
GPT-5.3 Codex Spark128K
GPT-5.3 Instant128K
GPT-5.2 Codex400K$1.75$14.00

Model IDs