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Models / OpenAI / GPT-5.1

OpenAI · gpt

GPT-5.1

Sharper GPT-5 generation for coding, product work, and tool-assisted tasks

$1.25 in · $10.00 out

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

Provider input prices run from $1.00 to $1.63 per 1M tokens. Output prices run from $8.00 to $13.00.

Context
400,000
Max output
128,000
Cache read
$0.13
Cache write
—
Reasoning
Yes
Tool calls
Yes
Structured output
Yes
Vision
Yes
Open weights
No
License
—
Released
Nov 13, 2025
Updated in source
Nov 13, 2025
Knowledge
2024-09-30
Providers
23

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.

Estimated monthly cost

GPT-5.1

$22.50

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. Where a provider lists the model more than once, the row is the listing whose id is closest to the canonical model id.
ProviderInputOutputCache readCache writeStatus
Ofox$1.00$8.00$0.10——
Abacus$1.25$10.00$0.13——
Cloudflare AI Gateway$1.25$10.00$0.13——
Databricks$1.25$10.00$0.13——
DevPass$1.25$10.00$0.13——
Eden AI$1.25$10.00$0.13——
Impossibl$1.25$10.00$0.13——
Kilo Gateway$1.25$10.00$0.13——
LLM Gateway$1.25$10.00$0.13——
Merge Gateway$1.25$10.00$0.13——
NanoGPT$1.25$10.00$0.13——
NEAR AI Cloud$1.25$10.00$0.13——
Neon$1.25$10.00$0.13——
OpenAIreference$1.25$10.00$0.13——
OpenRouter$1.25$10.00$0.13——
OrcaRouter$1.25$10.00$0.13——
Pioneer$1.25$10.00$0.13$1.25—
Prime Inference$1.25$10.00———
Cortecs$1.38$10.96$0.16——
Requesty$1.38$11.00$0.14——
AI/ML API$1.63$13.00$0.16——
AnyAPI—————
Snowflake Cortex—————

Jobs this model qualifies for