gpt-5.5
Azure OpenAI
gpt-5.5
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, enabling large-scale reasoning, coding, and multimodal workflows within a single system.
Input / output per 1M
$5.00 / $30.00
Tiered
Context Window
1M
Max output
128,000
Released
Apr 24, 2026
Provider pricing
The same model is offered by several providers. Prices below are per provider; select a row to switch provider.
| Provider | Input / 1M | Output / 1M | Cache read / 1M | Context | Max output |
|---|---|---|---|---|---|
Current | $5.00 | $30.00 | $0.50 | 1M | 128,000 |
Pricing
Tiered by context window; prices below are from the current provider, per 1M tokens.
| Token range | Input / 1M | Output / 1M | Cache read / 1M |
|---|---|---|---|
0 < Token ≤ 272K | $5.00 | $30.00 | $0.50 |
272K < Token ≤ 1050K | $10.00 | $45.00 | $1.00 |
Performance
Data for this section is coming soon.
Uptime
Data for this section is coming soon.