OpenAI: GPT-5.4 Mini (batch)

GPT-5.4 Mini (batch) is OpenAI's smaller GPT-5.4 variant, offered here through batch pricing. It accepts text, image, and file inputs, with a 400,000-token context window and up to 128,000 output tokens per response. It supports tool calling and reasoning; the listing does not say whether it supports structured output, so confirm that before relying on schema-constrained responses. At $0.375 per million input tokens and $2.25 per million output tokens, it suits teams running large, cost-sensitive workloads that can tolerate batch processing. Its blended score of 70.8 rests on only three benchmarks, so treat that figure as a partial signal rather than a settled ranking. The split within those three is useful: a coding index of 92.5 stands well above an agentic index of 49.8. Shortlist it for bulk coding or long-document tasks, and test it carefully before committing it to multi-step agent work.