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o1

OpenAI ๐Ÿง  Language Model

OpenAI o1 (chat completions endpoint).

โน Retired on 2026-10-23 ยท use o3

Specifications

Input modalitiestext, image
Output modalitiestext
Capabilitiestools, reasoning
Relative speedโ—โ—โ—‹โ—‹โ—‹ Relaxed
Sunset on2026-10-23
Replacement modelo3
Context window200,000 tokens
Max output100,000 tokens
Input price$26.25 / 1M
Output price$105.00 / 1M

Pricing

$26.25 / 1M input tokens  ยท  $105.00 / 1M output tokens

Platform credit pricing โ€” live rates on the Models page.