GPT-5.4 Nano (batch)

A lightweight variant of GPT-5.4 with a 400k token context window, optimized for speed and efficiency in high-volume workloads.

Strengths

Delivers fast inference with minimal computational overhead while maintaining a large context window relative to its size.

Best for

Batch processing, high-volume inference jobs, and latency-sensitive applications where throughput matters more than maximum reasoning capability.

Limitations

Smaller and less capable than the standard GPT-5.4, making it less suitable for complex reasoning or tasks requiring the full reasoning depth of larger models in the family.