Question 1

What is GPT-4.1 Mini?

Accepted Answer

GPT-4.1 Mini is a model from OpenAI, released on Apr 14, 2025. GPT-4.1 Mini is a mid-sized model delivering performance competitive with GPT-4o at substantially lower latency and cost. It retains a 1 million token context window and scores 45.1% on hard instruction evals, 35.8% on MultiChallenge, and 84.1% on IFEval. Mini also shows strong coding ability (e.g., 31.6% on Aider’s polyglot diff benchmark) and vision understanding, making it suitable for interactive applications with tight performance constraints.

Question 2

How much does GPT-4.1 Mini cost?

Accepted Answer

On the Respan gateway, input starts at $0.40 per 1M tokens on OpenRouter, and output starts at $1.60 per 1M tokens on OpenRouter, after gateway discounts. Averaged across 5 providers, it costs $0.40 per 1M input tokens and $1.60 per 1M output tokens.

Question 3

Which providers serve GPT-4.1 Mini on Respan?

Accepted Answer

5 providers serve GPT-4.1 Mini: OpenRouter, Azure OpenAI, Inference.net, and OpenAI. Azure OpenAI requires your own provider API key (BYOK).

Question 4

What is GPT-4.1 Mini's context window?

Accepted Answer

GPT-4.1 Mini accepts up to 1.0M tokens of context on its largest provider route.

Question 5

How do I use GPT-4.1 Mini with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "openai/gpt-4.1-mini-2025-04-14". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is GPT-4.1 Mini?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was Azure OpenAI at 53 tokens per second, and the lowest response latency was 0.5 seconds on OpenAI. Speed varies with request size and provider.

Question 7

Where does GPT-4.1 Mini rank on the Respan Index?

Accepted Answer

GPT-4.1 Mini scores 14.3 out of 100 on the Respan Index v1.1, ranking #127 of 138 models. By category: Coding 4.7, Agents 10.0 (estimated), Reasoning 11.4, Knowledge & language 12.6, and Human preference 43.1. The Respan Index combines independent and lab-reported benchmark results into one score, using benchmark data collected by llmmetric.com.

Question 8

How does GPT-4.1 Mini score on benchmarks?

Accepted Answer

GPT-4.1 Mini has 15 published benchmark scores, including WeirdML 37.6%, GPQA Diamond 65.8%, and MATH Level 5 87.3%. Each score links to where it was published; the data is collected by llmmetric.com.

Provider	Context	Input	Output
OpenRouter`openrouter/openai/gpt-4.1-mini`	1.0M	$0.40/M	$1.60/M
Azure OpenAIBYOK only`azure/gpt-4.1-mini`	1M	$0.40/M	$1.60/M
Inference.net`inference_net/gpt-4.1-mini`	1.0M	$0.40/M	$1.60/M
OpenAI`openai/gpt-4.1-mini`	1M	$0.40/M	$1.60/M
OpenAI`openai/gpt-4.1-mini-2025-04-14`	1M	$0.40/M	$1.60/M

GPT-4.1 Mini

Providers

Certified where it counts.

Pricing

Cost by volume

Throughput and latency

Output speed

Time to first token

Response latency

Benchmarks

Respan Indexv1.1

Coding1

Reasoning4

Apps

GPT-4.1 Mini FAQ

Works with your entire stack

Built for AI agents.
Break less.
Ship more.

Math5

Knowledge3

Arena2