Intelligence
n/a
GPT-5.5 Pro
wins
54.8
GPT-5.5
GPT-5.5 Pro vs GPT-5.5
GPT-5.5 Pro from OpenAI and GPT-5.5 from OpenAI are shown side by side so you can compare pricing, model IDs, context and output limits, modalities, tool use, release details, and benchmark results where data is available.
GPT-5.5 ProOpenAI
GPT-5.5OpenAI
Basic Information
Name
GPT-5.5 ProGPT-5.5 Pro
Model id
GPT-5.5 Progpt-5.5-pro
Intro
GPT-5.5 ProGPT-5.5 Pro is the higher-compute variant of OpenAI’s GPT-5.5 generation, intended for the hardest professional tasks where answer quality matters more than speed. OpenAI materials describe the Pro tier as thinking harder for greater precision across coding, research, data analysis, and document-heavy work. It should be positioned for difficult reasoning and professional-grade deliverables rather than routine chat.
Author
GPT-5.5 ProOpenAI
Released date
GPT-5.5 Pro2026-04-23
Name
GPT-5.5GPT-5.5
Model id
GPT-5.5gpt-5.5
Intro
GPT-5.5GPT-5.5 is described by OpenAI as a smarter frontier model for coding, research, data analysis, and professional knowledge work. The official launch messaging emphasizes higher capability, better speed than previous difficult-work models, and strong performance on tasks involving documents and structured analysis. Its description should focus on broad professional intelligence rather than a single niche.
Author
GPT-5.5OpenAI
Released date
GPT-5.52026-04-23
Pricing
Input
GPT-5.5 Pro$30/M
Output
GPT-5.5 Pro$180/M
Cached input
GPT-5.5 Pron/a
Input
GPT-5.5$5/M
Output
GPT-5.5$30/M
Cached input
GPT-5.5$0.5/M
Context & Output
Context length
GPT-5.5 Pro1.1M
Max output tokens
GPT-5.5 Pro128K
Context length
GPT-5.51.1M
Max output tokens
GPT-5.5128K
Capabilities
Reasoning
GPT-5.5 Pro
Knowledge
GPT-5.5 Pro2025-12-01
Attachment
GPT-5.5 Pro
Input modalities
GPT-5.5 ProImage, PDF, Text
Output modalities
GPT-5.5 ProText
Temperature
GPT-5.5 Pro
Tool use
GPT-5.5 Pro
Reasoning
GPT-5.5
Knowledge
GPT-5.52025-12-01
Attachment
GPT-5.5
Input modalities
GPT-5.5Image, PDF, Text
Output modalities
GPT-5.5Text
Temperature
GPT-5.5
Tool use
GPT-5.5
Benchmark
Coding
n/a
GPT-5.5 Pro
wins
59.1
GPT-5.5
GPT-5.5 ProOpenAI
GPT-5.5OpenAI
Knowledge & Reasoning
GPQA
n/a
HLE
n/a
GPQA
wins93.5%
HLE
wins44.3%
Coding
SciCode
n/a
Terminal-Bench Hard
n/a
SciCode
wins56.1%
Terminal-Bench Hard
wins60.6%
Instruction Following & Agent Tasks
IFBench
n/a
AA-LCR
n/a
Tau2
n/a
IFBench
wins75.9%
AA-LCR
wins74.3%
Tau2
wins93.9%
FAQ
Which model is better, GPT-5.5 Pro or GPT-5.5?+
GPT-5.5 Pro and GPT-5.5 should be compared by workload. This page places price, context, output limits, capabilities, and benchmark data side by side.
Is GPT-5.5 cheaper than GPT-5.5 Pro?+
Use the pricing rows above to compare input, output, and cached input prices for GPT-5.5 Pro and GPT-5.5.
Which model supports a longer context length?+
GPT-5.5 Pro lists 1.1M context length, while GPT-5.5 lists 1.1M.
Can I access both models through TokenHub?+
If both models are available in the TokenHub catalog, you can route requests to GPT-5.5 Pro and GPT-5.5 through the TokenHub API.