L Models Best vision

GPT-5.5

Name: GPT-5.5
Author: OpenAI

by OpenAI

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on ha

Visit OpenAI Submit your build →

Models

GPT-5.5

Added 10 July 2026

#openai

Overview

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...

How to use / API access

Call via OpenRouter with model id `openai/gpt-5.5`.

openrouter · openai/gpt-5.5 Docs

OpenRouter id: openai/gpt-5.5

Benchmarks

Intelligence Index (artificial-analysis) : 54.8 index
Coding Index (artificial-analysis) : 74.9 index
Agentic Index (artificial-analysis) : 44.9 index
Design Arena agenticgamedev (other) : 1201 elo · #5
Design Arena agentichtmlslides (other) : 1084 elo · #9
Design Arena agenticslides (other) : 1150 elo · #7
Design Arena agenticslides(html) (other) : 1077 elo · #9

Notes

GPT-5.5 is listed in the EDNA Models directory from the OpenRouter catalogue.

← Back to Models Submit your own entry →