OpenAI

GPT-5

Unified model with adaptive reasoning depth and multimodal capabilities

Overall Highlight

Adaptive reasoning with 256K context — auto-scales compute based on task difficulty

Overview

GPT-5 introduces OpenAI's unified model architecture that dynamically adjusts reasoning depth based on task complexity. Features native multimodal understanding (text, image, audio), improved instruction following, and enhanced tool use. The model automatically allocates more compute to harder problems, reducing the need for manual reasoning mode selection.

Capabilities

  • Adaptive reasoning depth (auto-scaling compute)
  • Native multimodal understanding
  • Improved function calling and tool use
  • Enhanced instruction following
  • Code generation with execution feedback
  • Structured output with strict mode

Use Cases

  • General-purpose AI assistance
  • Multimodal content analysis
  • Automated coding with iterative refinement
  • Data analysis and visualization
  • Content generation at scale

Version Breakdown

GPT-5

2025 Q3

Context Window

256K tokens

Parameters

Undisclosed

Release

2025 Q3

Highlights

  • Adaptive reasoning — auto-allocates compute to hard problems
  • Unified model replacing separate reasoning variants
  • Native multimodal (text + image + audio)
  • Best-in-class instruction following

Benchmarks

MMLU

90.1

HumanEval

94.2

GSM8K

97.1

MATH

80.3

GPT-5 mini

2025 Q3

Context Window

128K tokens

Parameters

Undisclosed

Release

2025 Q3

Highlights

  • Compact variant for cost-sensitive workloads
  • 3x cheaper than GPT-5
  • Retains multimodal capabilities
  • Excellent for high-volume applications

Benchmarks

MMLU

84.0

HumanEval

88.1

GSM8K

93.2

MATH

70.5

GPT-4o

2024 Q2

Context Window

128K tokens

Parameters

~200B (multimodal)

Release

2024 Q2

Highlights

  • Previous flagship — mature and stable
  • Excellent ecosystem support
  • Strong multimodal capabilities
  • Good cost-to-performance ratio

Benchmarks

MMLU

83.1

HumanEval

85.4

GSM8K

90.5

MATH

64.2