GPT 5.4 Pro
GPT 5.4 Pro is a text generation model from OpenAI with a 1,000,000-token context window and 128,000-token max response size.
OpenAILarge context text generation from OpenAI
GPT 5.4 Pro is a large language model developed by OpenAI, released in March 2026. It is designed for text generation tasks and offers a context window of one million tokens, allowing it to process and reason over very long documents or conversation histories in a single pass. The model supports a maximum response size of 128,000 tokens, making it suitable for tasks that require extended output.
GPT 5.4 Pro is available through MindStudio as a first-party OpenAI model, meaning it is accessed directly via OpenAI's own infrastructure. It is well suited for use cases that involve long-form content generation, document analysis, summarization of lengthy materials, and multi-turn conversations where retaining extensive context is important. Developers building applications that require handling large volumes of text in a single request will find the model's context capacity particularly relevant.
What GPT 5.4 Pro supports
Long Context Window
Processes up to 1,000,000 tokens in a single request, enabling analysis of very long documents or extended conversation histories without truncation.
Extended Text Output
Generates responses of up to 128,000 tokens, supporting long-form content such as detailed reports, full drafts, or lengthy structured outputs.
Text Generation
Produces natural language text for a wide range of tasks including summarization, drafting, question answering, and instruction following.
Chat Interface
Operates as a chat-style model (llm_chat), supporting multi-turn dialogue with persistent context across the conversation.
Latest Model Tag
Carries the LATEST tag, indicating it represents the most current version of this model line available in the MindStudio catalog as of its release date.
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Get Started FreeBenchmark scores
Scores represent accuracy — the percentage of questions answered correctly on each test.
| Benchmark | What it tests | Score |
|---|---|---|
| ARC-AGI-2 | Novel abstract reasoning and pattern recognition | 83.3% |
Common questions about GPT 5.4 Pro
What is the context window size for GPT 5.4 Pro?
GPT 5.4 Pro has a context window of 1,000,000 tokens, meaning it can process up to one million tokens of input in a single request.
What is the maximum response length GPT 5.4 Pro can produce?
The model supports a maximum response size of 128,000 tokens per output, which allows for very long generated responses.
Who publishes GPT 5.4 Pro and how is it provided?
GPT 5.4 Pro is published by OpenAI and is available as a first-party model, meaning it is accessed directly through OpenAI's own infrastructure.
When was GPT 5.4 Pro released?
GPT 5.4 Pro was released in March 2026 and was added to the MindStudio catalog on March 6, 2026.
What types of inputs does GPT 5.4 Pro support?
Based on the available metadata, GPT 5.4 Pro is a text generation model. Image and video analysis support are not confirmed in the current metadata.
Is pricing information available for GPT 5.4 Pro?
Published pricing for GPT 5.4 Pro is not listed in the current metadata. For the latest pricing details, refer to OpenAI's official pricing page.
What people think about GPT 5.4 Pro
Community discussion around GPT-5.4 has been largely positive, with users on r/singularity highlighting notable benchmark improvements over GPT-5.2 and discussing a case where the model may have engaged with an open EpochAI Frontier Math problem. The MineBench comparison threads attracted significant upvotes, suggesting strong interest in quantified performance differences between model versions.
Some threads focus on distinguishing GPT-5.4 from GPT-5.4 Pro, with users comparing their outputs on structured benchmarks. General release reaction threads on r/ChatGPT reflect broad user interest, though discussion there centers more on availability and first impressions than technical evaluation.
Difference Between GPT 5.2 and GPT 5.4 on MineBench
An EpochAI Frontier Math open problem may have been solved for the first time by GPT5.4
5.4 out!
Differences Between GPT 5.4 and GPT 5.4-Pro on MineBench
Parameters & options
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