GPT-5 Mini
ActiveGPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....
Overview
GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....
History
GPT-5 Mini became available via the OpenAI API on 2025-08-07.
Training & availability
Training data has a knowledge cutoff of 2024-05-31 — information about events after that date is unlikely to appear in the model's responses. OpenAI has not released the underlying model weights — access is via their hosted API only.
Capabilities
-
Context window: 272K tokens.
-
Max output: 128K tokens.
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Input modalities: text, image, file.
Recommended for: vision, agentic, long-context.
Limitations
- The knowledge cutoff is 22 months old — this model will not know about recent events, releases, or API changes.
Pricing
- Input: $0.2500 per 1M tokens
- Output: $2.0000 per 1M tokens
Use the cost calculator above to estimate monthly spend for your workload.
Quick start
Minimal example using the openai API. Copy, paste, replace the key.
from openai import OpenAI
client = OpenAI(api_key="sk-...")
resp = client.chat.completions.create(
model="gpt-5-mini",
messages=[{"role": "user", "content": "Explain quantum computing in one sentence."}],
)
print(resp.choices[0].message.content)Cost calculator
Estimate your monthly bill. Presets are typical workload sizes.
Integrations & tooling support
- Tool calling
- Supported
- Structured outputs
- Not supported
Price vs quality
Standard pricing band. Quality tier pending more benchmark coverage.
- Quality percentile
- —
- Effective price
- $1.56/1M
- Pricing breakdown
- $0.25/1M in
$2/1M out
Community ratings
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Comments
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