GPT-5.5 Pro

OpenAI • gpt-5-5-pro

Model Information

Slug	gpt-5-5-pro
LLM.txt	View
Release Date	April 23, 2026 New
HLE	0.572
Browse Comp	0.901

Organization

Name	OpenAI
Website	https://openai.com/

Model Description

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, and is designed for long-horizon problem solving, agentic coding, and precise execution across multi-step workflows.

Available at 20 Providers

Provider	Type	Model Name	Original Model	Input ($/1M)	Output ($/1M)	Actions
Naga		GPT 5.5 Pro	`gpt-5.5-pro`	$20.00	$100.00	Visit
CometAPI		GPT 5.5 Pro	`gpt-5.5-pro`	$24.00	$144.00	Visit
Poe		GPT-5.5-Pro	`gpt-5.5-pro`	$27.27	$163.64	Model
Cline	Code	OpenAI: GPT-5.5 Pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Visit
Kilo Code	Code	OpenAI: GPT-5.5 Pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Visit
Nous Research		OpenAI: GPT-5.5 Pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Visit
OpenRouter	Chat Code	GPT-5.5 Pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Model
OpenCode Zen	Chat Code	gpt-5.5-pro	`gpt-5.5-pro`	$30.00	$180.00	Visit
ZenMUX	Chat Code	OpenAI: GPT-5.5 Pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Visit
FastRouter		OpenAI: GPT-5.5 Pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Model
Requesty			`openai/gpt-5.5-pro`	$30.00	$180.00	Visit
Requesty			`openai-responses/gpt-5.5-pro`	$30.00	$180.00	Visit
OpenAI	Chat Code	GPT-5.5 Pro	`gpt-5.5-pro`	$30.00	$180.00	Visit
WaveSpeed AI	Chat Code	gpt-5.5-pro	`openai/gpt-5.5-pro`	$30.00	$180.00	Visit
LLM Gateway		GPT-5.5 Pro	`gpt-5.5-pro`	$30.00	$180.00	Visit
AIMLAPI		GPT-5.5 Pro	`gpt-5.5-pro-2026-04-23`	$39.00	$234.00	Visit
Krater		OpenAI: GPT-5.5 Pro	`gpt-5-5-pro`	-	-	Visit
ValorGPT		GPT-5.5 Pro	`openai-gpt-5.5-pro`	-	-	Model
Writingmate	Chat Code	OpenAI: GPT-5.5 Pro	`openai/gpt-5.5-pro`	-	-	Model
Factory.ai	Code	GPT-5.5 Pro	`gpt-5.5-pro`	-	-	Visit

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