AI Recommendation
Should you use gpt-4.1?
gpt-4.1 is listed for chat workloads and supports a 1.0M context window.
Use it when GitHub Models's free tier is enough for evaluation, demos, or light production traffic.
gpt-4.1 Free API on GitHub Models
Free API Available from GitHub Models
Long-lived GPT workhorse for coding, instruction following, and production apps
Free APIOpenAI compatibleTool callingJSON modePDF inputTextImage
API Details
Copy-ready connection details
Base URL
https://models.github.ai/inference Model ID
gpt-4-1 API format OpenAI Chat Completions
Technical Details
gpt-4.1 specifications
Context window 1.0M
Max output 32K
Status Online
Family gpt
Knowledge cutoff 2024-04
Released Apr 14, 2025
Last updated Aug 6, 2026
Free listing since Apr 14, 2025
Input text, image, pdf
Output text
Capabilities tool calling, structured output, file attachments, temperature control
External benchmark references
| Benchmark | Score | Metric | Date |
|---|---|---|---|
| Aider Polyglot | 52.4 | percent correct | 2025-04-14 |
Best for
- Chat
Strengths & Weaknesses
Strengths
- Long context window
- Tool calling support
- Structured JSON output
- Works with OpenAI-style SDKs
Watch outs
- Free-tier rate limits apply
Benchmark Overview
Benchmark signals for gpt-4.1
Intelligence General reasoning and instruction following
26.3/100 Coding Programming and code generation
21.8/100 Agentic Tool use and multi-step tasks
27.3/100 Speed Observed generation speed
109 tok/s Context Maximum listed context window
1.0M Pricing
gpt-4.1 pricing per 1M tokens
Input $2 per 1M tokens
Output $8 per 1M tokens
Free access Available GitHub Models
Rate limit 10 RPM, 50 RPD provider policy
Availability
gpt-4.1 availability by provider
We only found this gpt-4-1 listing on GitHub Models in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | gpt-4.1 | Free tier | 1.0M | OpenAI-style | 10 RPM, 50 RPD |
Compare
gpt-4.1 alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| Phi-4 | GitHub Models | 131K | Free tier |
| Mistral Large (24.11) | GitHub Models | 131K | Free tier |
| AI21 Jamba 1.5 Large | GitHub Models | 256K | Free tier |
| gpt-5 | GitHub Models | 200K | Free tier |
| gpt-4.1-mini | GitHub Models | 1.0M | Free tier |
Typical Use Cases
gpt-4.1 use cases
Chat
gpt-4.1 is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
FAQ
gpt-4.1 free API FAQ
Is gpt-4.1 free to use?
gpt-4.1 is listed with free API access on GitHub Models, subject to the provider's quota and account policy.
What is the gpt-4.1 model ID?
The model ID shown in this catalog is gpt-4-1.
What are the gpt-4.1 free tier rate limits on GitHub Models?
The listed free tier limit is 10 RPM, 50 RPD. Limits can change per account tier, so confirm against the provider dashboard.
What context window does gpt-4.1 support?
The listed context window is 1.0M tokens with up to 32K output tokens.
More about gpt-4.1
GPT-4.1 is OpenAI's mid-tier model available for free through GitHub Models — Microsoft's AI playground for GitHub users. With a 1M-token context window, 32K max output, and OpenAI-native SDK compatibility, it is the most accessible way to use a GPT-4-class model without paying for an OpenAI API key. The free tier is rate-limited to 10 RPM and 50 requests per day, and per-request token caps apply (8K input / 4K output), so it is best suited for prototyping, testing prompts, and lightweight coding tasks rather than production deployment. Requires only a GitHub account — no separate API key signup needed.
For API keys, setup steps, and provider-level limits, see the GitHub Models provider page.