general-purpose

GPT-5.4

by OpenAI

GPT-5.4 is OpenAI's frontier large language model featuring advanced reasoning and extended long-context capabilities. It offers tiered pricing at $2.50/$15 per million input/output tokens for standard usage, with rates doubling to $5/$22.50 per million tokens above the 272K token threshold. Designed for enterprise and developer use cases requiring large context windows and high-throughput inference.

8 Overall Score

Scores

Capability
9
Ease of Use
8
Documentation
9
Reliability
9
Value
6
Momentum
9

Details

Status
active
Pricing
paid
Launch Date
2025
Last Updated
2026-03-15

Key Features

  • Tiered long-context pricing above 272K token threshold
  • Frontier-level reasoning and instruction following
  • Very large context window support
  • OpenAI API compatibility
  • Multimodal input support

Tech Stack

TransformerRLHFREST APIPython SDKNode.js SDKTypeScript