Cost-efficient variant of OpenAI's current speech-to-speech realtime model. Served via the gateway's /v1/realtime WebSocket endpoint with text and audio input/output and function calling.
OffRail routes requests to the best providers that are able to handle your prompt size and parameters.
Cost-efficient variant of OpenAI's current speech-to-speech realtime model. Served via the gateway's /v1/realtime WebSocket endpoint with text and audio input/output and function calling. You can access it through OffRail's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for GPT Realtime 2.1 Mini on OffRail starts at $0.60 per million input tokens and $2.40 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
GPT Realtime 2.1 Mini supports a context window of up to 128,000 tokens on its largest provider deployment.
GPT Realtime 2.1 Mini is served by OpenAI through OffRail. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
GPT Realtime 2.1 Mini supports tool (function) calling, but not JSON output modes.
GPT Realtime 2.1 Mini was released on July 6, 2026.
GPT-5.6 Sol
1,050,000 context$5.00 in / $30.00 out per 1M
GPT-5.6 Terra
1,050,000 context$2.00 in / $12.00 out per 1M
GPT-5.6 Luna
1,050,000 context$0.20 in / $1.20 out per 1M
GPT Realtime 2.1
128,000 context$4.00 in / $24.00 out per 1M
GPT-5.5
1,050,000 context$5.00 in / $30.00 out per 1M
GPT-5.5 Pro
1,050,000 context$30.00 in / $180.00 out per 1M