ChatGPT
OpenAI profile, latest version intelligence, capability movement, and source-aware release history.
Profile
ChatGPT is OpenAI's conversational AI assistant. The model that started the generative AI revolution, evolving from GPT-3.5 to GPT-4o with multimodal capabilities.
Latest Version
GPT-5.5
Apr 2026
Confidence
75%
estimated
Context
128,000
last known / not captured
Versions
5
documented releases
Current Release Intelligence
Latest published version and metadata capture state
Release
GPT-5.5
EST confidenceGPT-5.5 is described as OpenAI's smartest model yet, offering faster performance and increased capabilities. It is built for complex tasks including coding, research, and data analysis across tools.
Decision Fit
Best For
Repository coding and rapid iteration
Avoid If
You need non-technical, no-setup workflows
Release Diff
Core fields and capture notes for this release
Version
Context Window
Not captured in this release; showing last known value when available
128,000 tokens
Pricing
Not captured in this release; showing last known value when available
ChatGPT Plus and API
Current Capabilities
GPT-5.5 with previous-release movement
Previous score: 4
Previous score: 10
Previous score: 7
Previous score: 10
Version History
5 releases documented
GPT-5.5
April 24, 2026
GPT-5.5 is described as OpenAI's smartest model yet, offering faster performance and increased capabilities. It is built for complex tasks including coding, research, and data analysis across tools.
o1
September 12, 2024
Reasoning model that thinks before answering. Excels at complex math, science and coding problems.
GPT-4o
May 13, 2024
Omni model. Faster and cheaper than GPT-4. Real-time audio and vision. Emotional voice responses.
GPT-4
March 14, 2023
Massive capability jump. Multimodal inputs introduced. Passed bar exam in top 10 percentile.
GPT-3.5
November 30, 2022
Initial ChatGPT launch. Shocked the world with conversational AI. Reached 1 million users in 5 days.