Leaderboard/GPT-5.5 Instant

GPT-5.5 Instant

by OpenAI · ID gpt-5-5-instant · Released 2026-05 · Proprietary

-ELO
Official docsTry in ChatGPTSearch official source

-

ELO Score

-

MMLU

-

HumanEval

128K

Context Window

$2.50

Input Price

About GPT-5.5 Instant

Fast default model powering ChatGPT for all users. Optimized for speed while maintaining GPT-5.5 quality.

Output Price

$15.00

License

Proprietary

Official Website

Try in ChatGPT

Not sure where to find it? Search query: "GPT-5.5 Instant official"

Compare with Other Models

GPT-4o

1442

OpenAI

128K context · $2.50

GPT-4o Mini

OpenAI

128K context · $0.15

o1

1402

OpenAI

200K context · $15.00