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.
GPT-4.1, launched by OpenAI on April 14, 2025, introduces a 1 million token context window and supports outputs of up to 32,768 tokens per request. It delivers outstanding performance on coding tasks, achieving 54.6% on the SWE-Bench Verified benchmark, and shows a 10.5% improvement over GPT-4o on MultiChallenge for instruction following. The model's knowledge cutoff is set at June 2024. Pricing is $2.00 per million tokens for input and $8.00 per million tokens for output, with a 75% discount applied to cached inputs, making it highly cost-efficient for repeated queries.
| GPT-4.5 | GPT-4.1 | |
|---|---|---|
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 | $2.00 per million tokens |
Pricing Output
| $150.00 per million tokens | $8.00 per million tokens |
MMLU
| Not available | 90.2% pass@1 Source |
MMLU-Pro
| Not available | - |
MMMU
| 74.4% Source | 74.8% Source |
HellaSwag
| Not available | - |
HumanEval
| Not available | - |
MATH
| Not available | - |
GPQA
| 71.4% science Source | 66.3% Diamond Source |
IFEval
| Not available | - |
SimpleQA
| - | - |
AIME 2024 | - | 48.1% Source |
AIME 2025 | - | - |
Aider Polyglot
| - | - |
LiveCodeBench v5
| - | - |
Global MMLU (Lite)
| - | 87.3% pass@1 Source |
MathVista
| - | - |
Mobile Application |
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