OpenAI's newest GPT-4.5 model, released on February 27, 2025, is a groundbreaking AI with 12.8 trillion parameters and a 128K-token context window. It features advanced general knowledge, enhanced emotional intelligence, multimodal input processing (text and image),sophisticated function calling, and real-time streaming responses. Initially rolled out for ChatGPT Pro users, with later availability for Plus and Team subscribers, it delivers responses at approximately 37 tokens per second, making it an excellent choice for tasks requiring high-level reasoning and emotional depth.
OpenAI o4-mini is the newest lightweight model in the o-series, engineered for efficient and capable reasoning across text and visual tasks. Optimized for speed and performance, it excels in code generation and image-based understanding, while maintaining a balance between latency and reasoning depth. The model supports a 200,000-token context window with up to 100,000 output tokens, making it suitable for extended, high-volume interactions. It handles both text and image inputs, producing textual outputs with advanced reasoning capabilities. With its compact architecture and versatile performance, o4-mini is ideal for a wide array of real-world applications demanding fast, cost-effective intelligence.
| GPT-4.5 | o4-mini | |
|---|---|---|
Web Site
| ||
Provider
| ||
Chat
| ||
Release Date
| ||
Modalities
| text images | text images |
API Providers
| OpenAI, Azure OpenAI Service | OpenAI API |
Knowledge Cut-off Date
| 2023-10 | - |
Open Source
| No | No |
Pricing Input
| $75.00 per million tokens | $1.10 per million tokens |
Pricing Output
| $150.00 per million tokens | $4.40 per million tokens |
MMLU
| Not available | fort |
MMLU-Pro
| Not available | - |
MMMU
| 74.4% Source | 81.6% Source |
HellaSwag
| Not available | - |
HumanEval
| Not available | 14.28% Source |
MATH
| Not available | - |
GPQA
| 71.4% science Source | 81.4% Source |
IFEval
| Not available | - |
SimpleQA
| - | - |
AIME 2024 | - | 93.4% Source |
AIME 2025 | - | 92.7% Source |
Aider Polyglot
| - | - |
LiveCodeBench v5
| - | - |
Global MMLU (Lite)
| - | - |
MathVista
| - | - |
Mobile Application |
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