OpenAI: GPT-5.4 Mini API
GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong performance across reasoning, coding, and tool use, while reducing latency and cost for large-scale deployments. The model is designed for production environments that require a balance of capability and efficiency, making it well suited for chat applications, coding assistants, and agent workflows that operate at scale. GPT-5.4 mini delivers reliable instruction following, solid multi-step reasoning, and consistent performance across diverse tasks with improved cost efficiency.
- Context window: 400,000 tokens
- Max output: 128,000 tokens
- Input: text, image
- Output: text
- Reasoning: Supported
- Tool calling: Supported
- File input: Supported
- Released: 2026-03-16
- Knowledge cutoff: 2025-08-30
Frequently Asked Questions
What is the context window of GPT-5.4 Mini?
GPT-5.4 Mini supports a context window of up to 400,000 tokens.
Does GPT-5.4 Mini support function calling?
Yes. GPT-5.4 Mini supports tool / function calling.
Does GPT-5.4 Mini support reasoning?
Yes. GPT-5.4 Mini is a reasoning-capable model.
What is the knowledge cutoff of GPT-5.4 Mini?
The knowledge cutoff of GPT-5.4 Mini is 2025-08-30.