GPT-4o Realtime Preview
GPT-4o Realtime Preview is OpenAI's language model with a 128K context window and up to 4K output tokens, available from 2 providers, starting at $2.50 / 1M input and $10.00 / 1M output. A preview release of the GPT-4o Realtime model, enabling real-time audio and text interaction over WebRTC or WebSocket for conversational applications.
OpenAI's language model with a 128K context window and up to 4K output tokens, available from 2 providers, starting at $2.50 / 1M input and $10.00 / 1M output. A preview release of the GPT-4o Realtime model, enabling real-time audio and text interaction over WebRTC or WebSocket for conversational applications.Capabilities
Input2/5
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Output2/5
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Capabilities2/13
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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 | $2.50 | $10.00 | $1.25 | $110.00 | $220.00 | $1.25 | $5.00 |
OpenAI | $5.00 | $20.00 | $2.50 | $40.00 | $80.00 | — | — |
Regional pricing
Provider-specific pricing that varies by region.
Azure AI Foundry
28 regions
| Region | Standard | Batch | |||||
|---|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Audio In $ / 1M | Audio Out $ / 1M | Input $ / 1M | Output $ / 1M | |
| Global | |||||||
| Global | $2.50 | $10.00 | $1.25 | $110.00 | $220.00 | $1.25 | $5.00 |
| Africa | |||||||
| South Africa North (Johannesburg)/ southafricanorth | $3.02 | $12.10 | $1.51 | — | — | — | — |
| Asia Pacific | |||||||
| Australia East (New South Wales)/ australiaeast | $2.75 | $11.00 | $1.38 | — | — | — | — |
| Japan East (Tokyo, Saitama)/ japaneast | $3.02 | $11.00 | $1.51 | — | — | — | — |
| South India (Chennai)/ southindia | $2.75 | $11.00 | $1.38 | — | — | — | — |
| Southeast Asia (Singapore)/ southeastasia | $1.65 | $13.20 | $1.38 | — | — | $1.38 | $5.50 |
| Canada | |||||||
| Canada East (Quebec)/ canadaeast | $3.02 | $12.10 | $1.51 | — | — | — | — |
| Europe | |||||||
| France Central (Paris)/ francecentral | $3.02 | $11.00 | $1.38 | — | — | $2.75 | $5.50 |
| Germany West Central (Frankfurt)/ germanywestcentral | $5.50 | $11.00 | $1.38 | — | — | $1.38 | $5.50 |
| Italy North (Milan)/ italynorth | $2.75 | $11.00 | $1.38 | — | — | — | — |
| Norway East (Norway)/ norwayeast | $3.02 | $12.10 | $1.51 | — | — | — | — |
| Poland Central (Warsaw)/ polandcentral | $2.75 | $11.00 | $1.38 | — | — | $1.38 | $5.50 |
| Spain Central (Madrid)/ spaincentral | $2.75 | $16.50 | $1.38 | — | — | $2.75 | $5.50 |
| Sweden Central (Gävle)/ swedencentral | $3.02 | $11.00 | $1.38 | — | — | $1.38 | $5.50 |
| Switzerland North (Zurich)/ switzerlandnorth | $3.02 | $12.10 | $1.51 | — | — | — | — |
| UK South (London)/ uksouth | $3.02 | $12.10 | $1.51 | — | — | — | — |
| West Europe (Netherlands)/ westeurope | $2.75 | $11.00 | $1.38 | — | — | $1.38 | $5.50 |
| Middle East | |||||||
| UAE North (Dubai)/ uaenorth | $3.02 | $12.10 | $1.51 | — | — | — | — |
| US | |||||||
| Central US (Iowa)/ centralus | $2.75 | $11.00 | $1.38 | — | — | $1.38 | $5.50 |
| East US (Virginia)/ eastus | $5.50 | $16.50 | $1.38 | — | — | $1.38 | $8.25 |
| East US 2 (Virginia)/ eastus2 | $2.75 | $11.00 | $1.38 | — | — | $2.75 | $5.50 |
| North Central US (Illinois)/ northcentralus | $2.75 | $16.50 | $1.38 | — | — | $1.38 | $5.50 |
| South Central US (Texas)/ southcentralus | $5.50 | $16.50 | $1.38 | — | — | $1.38 | $5.50 |
| US Gov Arizona/ usgovarizona | $3.44 | $13.75 | $1.72 | — | — | — | — |
| US Gov Virginia/ usgovvirginia | $3.44 | $13.75 | $1.72 | — | — | — | — |
| West Central US (Wyoming)/ westcentralus | $5.50 | $16.50 | — | — | — | — | — |
| West US (California)/ westus | $2.75 | $11.00 | $1.38 | — | — | $1.38 | $5.50 |
| West US 3 (Phoenix)/ westus3 | $2.75 | $16.50 | $1.38 | — | — | $2.75 | $5.50 |
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-5.4 Nano | 1.1M | $0.200 | $1.25 | Available | |
| GPT-5.4 | 1.1M | $2.50 | $15.00 | Available | |
| GPT-5.4 Pro | 1.1M | $30.00 | $180.00 | Available | |
| GPT-5.4 3.5 | — | 1.1M | — | — | Available |
| GPT-5.4 Pro 3.5 | — | 1.1M | — | — | Available |
| GPT-5.3 Chat | 128K | $1.75 | $14.00 | Available | |
| GPT-5.3 Codex | 400K | $1.75 | $14.00 | Available | |
| GPT-5.3 Codex Spark | — | 128K | — | — | Available |
| GPT-5.3 Instant | — | 128K | — | — | Available |
| GPT-4o Realtime Preview | 128K | $2.50 | $10.00 | Current |