Speed
Output tokens / second
GPT-5 Mini overview
GPT-5 Mini by OpenAI
GPT-5 Mini offers a lightweight yet powerful solution within the GPT-5 lineup, delivering efficient multimodal AI with text and vision inputs.
GPT-5 Mini specs
- Model ID
openai/gpt-5-mini-2025-08-07- Developer
- OpenAI
- Context window
- 400,000 tokens
- Max output
- 128,000 tokens
- Input
- Text
- Output
- Text, Image
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
GPT-5 Mini is a streamlined variant of the GPT-5 family designed to offer fast, efficient multimodal AI capabilities with a significantly lower cost while retaining the core advanced features of GPT-5. It supports text-to-text and image-to-text tasks, making it suitable for a wide range of applications where high throughput and cost efficiency are essential.
Performance and Token Capacity
- Supports an extensive input context of up to 400K tokens, enabling processing of large and complex documents similar to the full GPT-5 model.
- Offers efficient performance with faster inference times optimized for high throughput.
Core Features and Functionalities
- Model Architecture: Shares the core transformer-based architecture with GPT-5, optimized for efficiency and speed to balance performance with operational cost.
- Multimodal Support: Capable of handling both text and vision (image-to-text) tasks via API, enabling multimodal context understanding.
- Scalability: Tailored for applications requiring large context capabilities with moderated computational resources.
- Reasoning Capabilities: Retains improved reasoning and problem-solving features, albeit at a scaled-down level compared to full GPT-5.
- Bias and Safety: Includes foundational alignment and safety features consistent with GPT-5 models to mitigate hallucinations and ensure response reliability.
Use Cases
- High-volume, cost-sensitive software workflows including code generation and analysis.
- Large-scale document and image analysis for sectors like legal, finance, and healthcare.
- Multimodal content processing and generation where quicker turnaround is needed without full model cost.
Comparison with Other Models
vs GPT-4.1 Mini: GPT-5 Mini supports a larger 400,000 token context window and enhanced multimodal image-to-text abilities, priced more cost-effectively, whereas GPT-4.1 Mini balances intelligence, speed, and cost but with smaller context and more limited modality support.
Use cases
- High-volume, cost-sensitive software workflows including code generation and analysis.
- Large-scale document and image analysis for sectors like legal, finance, and healthcare.
- Multimodal content processing and generation where quicker turnaround is needed without full model cost.
Capabilities
- Function calling
- Streaming
- Structured outputs
- Reasoning
- Web search
GPT-5 Mini benchmarks by 
Artificial Analysis
See how GPT-5 Mini compares in generation speed. Data retrieved Nov 3, 2026.
Benchmark results
Compare 9 models available on AI/ML API across 5 independent benchmarks.
Humanity's Last Exam
Expert-written questions across academic subjects.
GPQA Diamond
Graduate-level science questions written to resist web search.
Terminal-Bench 4.0
Agentic tasks completed in a command-line environment.
AA-LCR
Reasoning across long documents of about 100k tokens.
SciCode
Python coding tasks drawn from scientific research.
GPT-5 Mini API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $0.25 | 1M tokens |
| Output | $2 | 1M tokens |
| Cached input | $0.025 | 1M tokens |
Prices from the AI/ML API price list, checked on Nov 4, 2026.
GPT-5 Mini vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
 GPT-5 Mini | $0.25 | $2 |
| GPT-6 Luna | $0.1 | $0.5 |
| GPT-6.1 Terra | $1 | $5 |
| GPT-6.1 Sol | $2 | $10 |
| GPT-6.1 Terra Pro | $2.12 | $10.58 |
How to use the GPT-5 Mini API
View docs
Build with your agent
Give your agent the model details, code and documentation.
Paste it into your coding agent to build the integration.
1Get your API key
Create API keyexport AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"2Make your first request
curl 'https://api.aimlapi.com/v1/chat/completions' \
-H "Authorization: Bearer $AIMLAPI_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "openai/gpt-5-mini-2025-08-07",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "openai/gpt-5-mini-2025-08-07",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}
response = requests.post("https://api.aimlapi.com/v1/chat/completions", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = await fetch("https://api.aimlapi.com/v1/chat/completions", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"model": "openai/gpt-5-mini-2025-08-07",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());Models similar to GPT-5 Mini
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GPT-5 Mini FAQ
What is the context window of GPT-5 Mini?
GPT-5 Mini has a 400,000 tokens context window and can return up to 128,000 tokens.
What inputs and outputs does GPT-5 Mini support?
GPT-5 Mini takes image, text as input and returns text.
What is the model ID for GPT-5 Mini?
Use openai/gpt-5-mini-2025-08-07 as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.
How much does GPT-5 Mini cost?
GPT-5 Mini costs $0.25 input and $2 output per 1M tokens on AI/ML API, billed as you go with no subscription.
Does GPT-5 Mini support streaming?
Yes, GPT-5 Mini can stream responses as they are generated.
Can GPT-5 Mini read images?
Yes, GPT-5 Mini accepts image input alongside text.
Who created GPT-5 Mini?
GPT-5 Mini was built by OpenAI.