GPT-Realtime-2.1
OpenAI
GPT-Realtime-2.1 by OpenAI costs $4.00 per 1M input tokens and $24.00 per 1M output tokens, with a 128K-token context window.
Pricing
Input (per 1M tokens)
$4.00
Output (per 1M tokens)
$24.00
Cached input (per 1M)
$0.40
Specifications
- Provider
- OpenAI
- Context window
- 128K tokens
- Parameters
- —
- Released
- Jul 2026
- Open weights
- No
- Frontier model
- No
Compare GPT-Realtime-2.1 with…
GPT-Realtime-2.1 vs OpenAI: GPT-5.6 Sol Pro$10.00/1MGPT-Realtime-2.1 vs OpenAI: GPT-5 Image Mini$2.00/1MGPT-Realtime-2.1 vs OpenAI: gpt-oss-120b (free)$0.00/1MGPT-Realtime-2.1 vs OpenAI: gpt-oss-20b (free)$0.00/1MGPT-Realtime-2.1 vs OpenAI: GPT-5.1-Codex-Mini$2.00/1MGPT-Realtime-2.1 vs GPT-5 Chat (latest)$10.00/1M
FAQ
Pricing is per 1M tokens (USD); confirm with the provider before production use.