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GPT-4.1: Improved Coding, Instruction Following, and Long Context
Released on April 14, 2025 as part of the GPT-4 lineup, GPT-4.1 sits alongside OpenAI o3-mini and OpenAI o3 and is positioned as a major upgrade focused on stronger coding performance, more reliable instruction following, and extended context handling.
Designed for workflows that demand accuracy and long-range coherence, it excels at coding, structured instruction tasks, and scenarios requiring sustained context. These capabilities make it a strong fit for software development, technical assistance, and applications that rely on stable long-context reasoning.
GPT-4.1: Key Specs
Below are GPT-4.1's main specs and how they translate into real-world behavior.
- Context Window - 1,047,576 tokens: This exceptionally large context capacity allows GPT-4.1 to handle massive documents, long-running conversations, or deeply layered instructions while keeping earlier details fully accessible.
- Maximum Output Length - 32,768 tokens: The model can produce lengthy, detailed responses, making it suitable for comprehensive explanations, multi-section reports, and complex content generated in a single pass.
- Speed and Efficiency - Provides steady, reliable responsiveness: It maintains smooth interactions at a moderate pace, offering a balanced experience for both conversational use and productivity workflows.
- Cost Efficiency - Priced at $2 / $8 per 1M tokens: This cost structure makes GPT-4.1 a practical option for teams seeking strong capability without moving into premium-tier pricing.
- Reasoning and Accuracy - Higher-level reasoning ability: The model performs well on complex logic, structured analysis, and multi-step problem-solving, offering more depth and precision than standard-tier options.
- Multimodal Capabilities - Supports text and image input, outputs text: It can analyze visual content alongside written prompts, enabling workflows that involve diagrams, screenshots, or mixed-content interpretation.
Compare GPT-4.1, OpenAI o3-mini, and GPT-4o
A brief overview of how each model differs in power, speed, and use cases.
| Feature | GPT-4.1 | OpenAI o3-mini | GPT-4o |
|---|---|---|---|
| Knowledge Cutoff | Jun 01, 2024 | Oct 01, 2023 | Oct 01, 2023 |
| Context Window (Tokens) | 1,047,576 | 200,000 | 128,000 |
| Max Output Tokens | 32,768 | 100,000 | 16,384 |
| Input Modalities | Text, image | Text | Text, image |
| Output Modalities | Text | Text | Text, image |
| Latency (OpenRouter Data) | 0.56s | 6.74s | 0.58s |
| Speed | Medium (faster than OpenAI o3) | Medium (about 1/3 faster than OpenAI o1-mini) | Slower than GPT-4o mini |
| Input / Output Cost per 1M Tokens | $2 / $8 | $1.1 / $4.4 | $2.5 / $10 |
| Reasoning Performance | Very High | Very High | High |
| Coding Performance (on SWE-bench Verified) | 54.60% | 49.30% | 30.80% |
| Best For | coding, instruction following, and long context | STEM reasoning tasks, particularly excelling in science, mathematics, and coding | processing non-English languages and enhanced visual capabilities |
Source: OpenAI GPT-4.1 Documentation
Best Cases to Use GPT-4.1
GPT-4.1 is best for work that requires clear structure and sustained understanding.
- For students and learners: Use GPT-4.1 to break down long readings, follow structured explanations, and understand complex topics through clear, step-by-step reasoning.
- For developers: Generate and refine code, interpret lengthy instructions, and handle multi-file logic with dependable accuracy across extended programming workflows.
- For businesses and teams: Summarize long documents, create thorough reports, and improve clarity in projects that depend on accurate interpretation of large amounts of information.
- For product teams and app builders: Build features that rely on precise instruction following and long-context reasoning, improving agent reliability and multi-step task execution.
- For operations and support workflows: Manage detailed procedures, review long issue histories, and produce consistent, structured solutions that streamline complex support tasks.
- For content and marketing helpers: Transform lengthy material into clear messaging, refine drafts with consistent logic, and maintain accuracy across multi-section or research-heavy content.
How to Access GPT-4.1
Accessing GPT-4.1 is easy, and you can choose the option that fits your needs.
1. OpenAI API
You can run GPT-4.1 through the official OpenAI API using an API key and active billing. This method is ideal for developers building apps, intelligent tools, or automated workflows requiring reliable model performance.
2. EssayDone AI Chat
For fast, no-setup access, GPT-4.1 is available in EssayDone AI Chat.
It provides the same model output as the API but in a streamlined, user-friendly experience suitable for students, creators, and professionals who want immediate access.
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FAQ
Here are some frequently asked questions about GPT-4.1.
Yes. GPT-4.1 provides higher reasoning capability, offering strong analytical performance suitable for complex tasks. Its reasoning rating places it among the more capable models for detailed, logic-driven work.
GPT-4.1 costs $2 per 1M input tokens and $8 per 1M output tokens. This makes it a highly affordable option compared to earlier GPT-4 models while still delivering strong performance.
GPT-4.1 is optimized for coding assistance, precise instruction following, and handling long-context interactions. It performs well in scenarios that require accuracy across extended prompts or technical workflows. It is ideal for developers, analysts, and users working with large documents or complex tasks.
GPT-4.1 accepts text and image inputs and produces text outputs. It can interpret visual information effectively for general tasks but is still primarily optimized for text reasoning rather than advanced visual analysis.
GPT-4.1 offers much stronger reasoning, higher accuracy, and broader capabilities than OpenAI o3-mini. While OpenAI o3-mini is faster and more affordable, GPT-4.1 delivers significantly better performance for complex analysis and instruction-heavy tasks.
Using GPT-4.1 in EssayDone AI Chat means you don't need an API key, don't face daily message limits, and aren't restricted by region. You can access ChatGPT and many other AI models in one platform with a single payment, all at a more affordable price.