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OpenAI AI Models

Creator of GPT-4o, o1, and DALL-E. Pioneered large-scale language models and RLHF alignment.

Founded2015San Francisco, CA9 ModelsWebsite →
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GPT-5.4

OpenAI

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system.

Context1.1M
Speed185 tok/s
InputText, Image, File
OutputText
ReasoningYes
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GPT-5.3-Codex

OpenAI

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2.

Context400K
Speed208 tok/s
InputText, Image, File
OutputText
ReasoningYes
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GPT-5.4 Mini

OpenAI

GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads.

Context400K
Speed189 tok/s
InputFile, Image, Text
OutputText
ReasoningYes
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gpt-oss-safeguard-20b

OpenAI

gpt-oss-safeguard-20b is a safety reasoning model from OpenAI built upon gpt-oss-20b.

Context131K
Speed294 tok/s
InputText
OutputText
ReasoningYes
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GPT-5.1-Codex-Mini

OpenAI

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

Context400K
Speed210 tok/s
InputImage, Text
OutputText
ReasoningYes
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GPT-5.4 Pro

OpenAI

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks.

Context1.1M
SpeedN/A
InputText, Image, File
OutputText
ReasoningYes
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GPT-5.1-Codex-Max

OpenAI

GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks.

Context400K
Speed115 tok/s
InputText, Image
OutputText
ReasoningYes
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GPT Audio Mini

OpenAI

A cost-efficient version of GPT Audio.

Context128K
Speed164 tok/s
InputText, Audio
OutputText, Audio
ReasoningNo
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GPT Audio

OpenAI

The gpt-audio model is OpenAI's first generally available audio model.

Context128K
SpeedN/A
InputText, Audio
OutputText, Audio
ReasoningNo
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