GPT-5 mini
OpenAI's cost-efficient GPT-5-tier model — most of the quality at a fraction of the cost
Verdict
The default now for classification, extraction, summarisation, and simple chat — meaningfully sharper than GPT-4o mini for the same rough price. Inherits GPT-5's unified reasoning at lower latency. First choice for cost-sensitive apps that outgrew GPT-3.5-era models.
Other Text Generation & Reasoning
- GPT-5.6Production
OpenAI current flagship — Sol/Terra/Luna tiers, 1.05M context
- GPT-5Superseded
OpenAI's previous flagship — superseded by GPT-5.6
- GPT-4oProduction
OpenAI previous-gen multimodal model — text, vision, audio
- GPT-4o miniStable
OpenAI's previous-gen cost-efficient model — superseded by GPT-5 mini
- GPT-OSS 120BStable
OpenAI's first open-weight model — 120B params, fully downloadable
- Claude Fable 5Production
Anthropic's most intelligent generally available model — Mythos-class reasoning