Models / OpenAI / GPT-5.3 Chat (latest)

OpenAI · gpt

GPT-5.3 Chat (latest)

Chat-tuned GPT model for conversational assistance, writing, and tool workflows

$1.75 in · $14.00 out

per 1M tokens · first-party price. Reference price from OpenAI, the lab's own listing.

Context
128,000
Max output
16,384
Cache read
$0.18
Cache write
—
Reasoning
No
Tool calls
Yes
Structured output
Yes
Vision
Yes
Open weights
No
License
—
Released
Mar 3, 2026
Updated in source
Mar 3, 2026
Knowledge
2025-08-31
Providers
4

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
302.AI$1.75$14.00———
Merge Gateway$1.75$14.00$0.18——
OpenAIreference$1.75$14.00$0.18—deprecated
Opper$1.75$14.00$0.18—deprecated