OpenAI
GPT-Realtime-2.1 Pricing
API pricing for GPT-Realtime-2.1 by OpenAI. Input tokens cost $4/1M, output tokens cost $24/1M with 128K context window.
Last updated:
ReasoningToolsVision
Input Cost
$4
per 1M tokens
Output Cost
$24
per 1M tokens
Context Window
128K
tokens
Cost Calculator
Estimated Cost:
$0.00
Model Details
Provider OpenAI
Model ID gpt-realtime-2.1
Context Window 128K tokens
Max Output 32000 tokens
Cache Read Cost $0.4/1M
Release Date 2026-07-06
Compare Alternatives
| Model | Input | Output | Context |
|---|---|---|---|
| GPT-Realtime-2.1 (this model) | $4 | $24 | 128K |
| GLM-5V-Turbo Zhipu AI | $5 | $22 | 200K |
| Claude Opus 4.5 Anthropic | $5 | $25 | 200K |
| Claude Opus 4.5 (latest) Anthropic | $5 | $25 | 200K |
| Claude Opus 4.6 Anthropic | $5 | $25 | 1M |
| Claude Opus 4.7 Anthropic | $5 | $25 | 1M |
Available from Resellers
GPT-Realtime-2.1 is also available through these resellers and gateways:
| Reseller | Model | Input | Output |
|---|---|---|---|
| FastRouter | GPT Realtime 1.5 | $4 | $16 |
| Vercel AI Gateway | GPT-Realtime mini | $0.6 | $2.4 |
| Vercel AI Gateway | GPT-Realtime-1.5 | $4 | $16 |
| Vercel AI Gateway | gpt-realtime-2 | $4 | $24 |
| Vercel AI Gateway | gpt-realtime-2.1 | $4 | $24 |