GPT Realtime 2
GPT Realtime 2 is OpenAI's language model with a 128K context window and up to 32K output tokens, starting at $4.00 / 1M input and $24.00 / 1M output. A high-capability real-time voice model supporting speech-to-speech interactions with configurable reasoning effort, stronger instruction following, and reliable tool use.
Capabilities
Input3/5
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Output2/5
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Capabilities2/13
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Pricing by Provider
| Provider | Standard | ||||
|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Audio In $ / 1M | Audio Out $ / 1M | |
OpenAI | $4.00 | $24.00 | $0.400 | $32.00 | $64.00 |
Cost Calculator
Preset:
Compares every provider & tier in USD
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| GPT-5.5 | 1.1M | $5.00 | $30.00 | Available | |
| 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-5.3 Codex | 400K | $1.75 | $14.00 | Available | |
| GPT-5.2 Codex | 400K | $1.75 | $14.00 | Available | |
| GPT-5.2 | 410K | $1.75 | $14.00 | Available | |
| GPT-5.1 | 410K | $1.25 | $10.00 | Available | |
| GPT-5.1 Codex | 400K | $1.25 | $10.00 | Available | |
| GPT-5.1 Codex Mini | 400K | $0.250 | $2.00 | Available | |
| GPT Realtime 2 | — | 128K | $4.00 | $24.00 | Current |