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OpenAI launched GPT-5.4 mini and nano for faster high-volume workloads
OpenAI released GPT-5.4 mini and GPT-5.4 nano on March 17, 2026. GPT-5.4 mini launched across the API, Codex, and ChatGPT, while GPT-5.4 nano launched as an API-only lower-cost variant. OpenAI priced GPT-5.4 mini at $0.75 input / $4.50 output per 1M tokens and GPT-5.4 nano at $0.20 input / $1.25 output per 1M tokens.
Mar 17, 2026 (UTC)Views:22Effective: Mar 17, 2026 (UTC)
Impact Assessment
Cost4
Reliability2
Migration1
Quality5
Compliance0
Sources
blog
Introducing GPT-5.4 mini and nano
OpenAI says GPT-5.4 mini is available today in the API, Codex, and ChatGPT, while GPT-5.4 nano is API-only.
pricing
Introducing GPT-5.4 mini and nano
OpenAI lists GPT-5.4 mini at $0.75 input / $4.50 output per 1M tokens and GPT-5.4 nano at $0.20 input / $1.25 output per 1M tokens.
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