GPT-4o Mini Realtime
GPT-4o Mini Realtime is OpenAI's language model with a 128K context window and up to 4K output tokens, available from 2 providers. A compact GPT-4o model capable of responding to audio and text inputs in real time over WebRTC or WebSocket, optimized for low-latency voice applications.
OpenAI's language model with a 128K context window and up to 4K output tokens, available from 2 providers. A compact GPT-4o model capable of responding to audio and text inputs in real time over WebRTC or WebSocket, optimized for low-latency voice applications.Capabilities
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Pricing by Provider
| Provider | Standard | Batch | |||||
|---|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Audio In $ / 1M | Audio Out $ / 1M | Input $ / 1M | Output $ / 1M | |
 Azure AI Foundry | $0.150 | $0.600 | $0.075 | $11.00 | $22.00 | $0.075 | $0.300 |
OpenAI | $0.600 | $2.40 | $0.300 | $10.00 | $20.00 | — | — |
Cost Calculator
Preset:
Compares every provider & tier in USD
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| GPT-5.4 Mini | 1.1M | $0.750 | $4.50 | Available | |
| GPT-5 Image Mini | 400K | $2.50 | $2.00 | Available | |
| GPT-5 Mini | 400K | $0.250 | $2.00 | Available | |
| GPT-4.1 Mini | 1.0M | $0.400 | $1.60 | Deprecating | |
| GPT-4o mini Transcribe | 16K | $0.150 | $0.600 | Available | |
| GPT-4o mini TTS | — | $0.150 | $0.600 | Available | |
| GPT-4o Mini Search Preview | 128K | $0.150 | $0.600 | Available | |
| GPT-4o mini Audio | 128K | $0.150 | $0.600 | Available | |
| GPT-4o mini Realtime | 128K | $0.150 | $0.600 | Available | |
| GPT-4o Mini | 131K | $0.150 | $0.600 | Available | |
| GPT-4o Mini Realtime | — | 128K | — | — | Current |
Other models
| Model | Tier | Released | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|---|
| GPT-5.4 Nano | Nano | 1.1M | $0.200 | $1.25 | |
| GPT-5.4 | — | 1.1M | $2.50 | $15.00 | |
| GPT-5.4 Pro | Pro | 1.1M | $30.00 | $180.00 | |
| GPT-5.4 3.5 | — | — | 1.1M | — | — |
| GPT-5.4 Pro 3.5 | Pro | — | 1.1M | — | — |
| GPT-5.3 Chat | — | 128K | $1.75 | $14.00 | |
| GPT-5.3 Codex | — | 400K | $1.75 | $14.00 | |
| GPT-5.3 Codex Spark | — | — | 128K | — | — |
| GPT-5.3 Instant | — | — | 128K | — | — |
| GPT-5.2 Codex | — | 400K | $1.75 | $14.00 |