LLMAPI only

GPT-5.4 mini

OpenAI

Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error

Specifications

Type: LLM
Access: API only
Released: March 17, 2026
License: Proprietary
Context window: 400,000 tokens
Knowledge cutoff: August 31, 2025
Output speed: 162 tok/s
Latency (TTFT): 0.63s
Input: Text, Image
Output: Text
API pricing: $0.75 in · $4.50 out / 1M tokens

Capabilities

Function callingStructured outputWeb search

Benchmarks

Reasoning

87.5

General

Humanity’s Last Exam

26.6

Our take

Cheaper subagent tier of the 5.4 generation for well-scoped, high-throughput tasks.

Links

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