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GPT-5.4

Available

GPT-5.4 with configurable reasoning, image input and tool support.

Access details: OpenAI · Responses API

An alias. The provider can point it at a newer version.

gpt-5.4
Updated Sep 23, 2026

Capabilities & limits

Context window
1.05M
Maximum output
128K
Image input
Supported
Tool calling
Supported
Structured output
Supported

Pricing

USD / 1M tokens
Input
$2.50
Output
$15.00

Standard text rates up to 272K input tokens. Cache, batch, tools, and regional premiums are excluded.

Full rate card 6 rates

All prices in USD.

Short-context input

$2.50 per 1M tokens
  • prompt ≤ 272K input tokens

Short-context output

$15.00 per 1M tokens
  • prompt ≤ 272K input tokens

Cached input

$0.25 per 1M tokens
  • prompt ≤ 272K input tokens

Long-context input

$5.00 per 1M tokens
  • prompt > 272K input tokens
  • rate applies to the full session

Long-context output

$22.50 per 1M tokens
  • prompt > 272K input tokens
  • rate applies to the full session

Long-context cached input

$0.50 per 1M tokens
  • prompt > 272K input tokens
  • rate applies to the full session

Other tiers per 1M tokens (short context): Batch: $1.25 input / $7.5 output / $0.13 cached; Flex: $1.25 input / $7.5 output / $0.13 cached; Fast mode: $5 input / $30 output / $0.5 cached. Regional processing (data residency) endpoints add a 10% uplift.

Price history
Sep 13, 2026

Input $2.50 per million tokens

Sep 23, 2026

Input $2.50 per million tokens

Sep 13, 2026

Output $15.00 per million tokens

Sep 23, 2026

Output $15.00 per million tokens

Technical details

Parameters
Not published
Active parameters
Not published
Architecture
Not published
Training / knowledge cutoff
Aug 31, 2025
Input modalities
Text, image
Output modalities
Text

Release & lifecycle

First available
Mar 5, 2026
available
As of Sep 13, 2026
available
As of Sep 23, 2026

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Prices and availability as of October 20, 2026. OpenAI's own pages have the latest.