prices synced 2026-09-11

GPT-4.5

retired

OpenAI · Released Feb 2025

Compare

Brief ultra-premium experiment at $75/$150 — the most expensive API model ever offered. Quickly superseded.

Input / 1M

$75.00

Output / 1M

$150.00

Cached input / 1M

—

Context window

128K

Price history

Price per 1M tokens over timeOutput $150.00; Input $75.00 as of Feb 2025.$0$50.00$100.00$150.00Output on 27 Feb 2025: $150.00Out $150.00Input on 27 Feb 2025: $75.00In $75.00Feb 2025

Snapshots

Effective Input Output Cached in Note Source
27 Feb 2025 $75.00 $150.00 — openai.com/api/pricing

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