Command Palette

Search for a command to run...

GPT-5.5 (medium)

OpenAI

Frontier ModelReasoningVision ModelProprietary

Analysis of OpenAI's GPT-5.5 (medium) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.

Context

Release Date
Apr 23, 2026
Window
922k

PricingPer 1M tokens

Input
$5
Output
$30
Blended 3:1
$11.25

Capabilities

Speed
57 t/s
Input
Output
Reasoning tokens

Latency

TTFT
7.42 ms
500 token response
16.12 s

Benchmarks

Reasoning
●●●○○
Coding
●●●○○
GPQA
92.6%
HLE
40.6%
SciCode
53.5%

Analysis of OpenAI's GPT-5.5 (medium) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.