OpenAI releases GPT-5.6 Luna

GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning

Type: MODEL_LAUNCH
Detection: benchmark
Confidence: high
Status

Related entities

ModelGPT-5.6 Luna CompanyOpenAI

Primary source

Epoch AI Benchmarking Hub · epoch.ai/benchmarks/eci ↗

Independent benchmark runs (GPQA Diamond, SWE-bench Verified, FrontierMath, ...) plus externally reported leaderboards and the Epoch Capabilities Index (ECI).

Related events

Benchmark19d ago
Epoch AI evaluates GPT-5.6 Luna
Epoch AI Benchmarking HubGPT-5.6 Luna OpenAI