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Models / OpenAI / GPT-5.5 Instant

OpenAI

GPT-5.5 Instant

Compact GPT model for low-latency assistance and high-volume workloads

$5.00 in · $30.00 out

per 1M tokens · provider rate closest to the median. No first-party OpenAI price was listed. The reference price is Azure's rate, the provider closest to the median.

Context
400,000
Max output
128,000
Cache read
$0.50
Cache write
—
Reasoning
Yes
Tool calls
Yes
Structured output
Yes
Vision
Yes
Open weights
No
License
—
Released
May 5, 2026
Updated in source
May 28, 2026
Knowledge
2025-12-01
Providers
3

What this model costs per month

Prices are USD per 1M tokens. A month is 30 days. Cache hits use the cache-read rate when the model has one; otherwise the cache field is ignored.

monthly = requests/day × 30 × (input tokens × (1 − cache hit) × input price + input tokens × cache hit × cache-read price + output tokens × output price) ÷ 1,000,000

Providers

Base rates from Models.dev. One row per provider.
ProviderInputOutputCache readCache writeStatus
Azurereference$5.00$30.00$0.50—beta
Azure Cognitive Services$5.00$30.00$0.50—beta
ZenMux$5.00$30.00$0.50——