Unknown · 2× · tolest 07. Aug. 2026
14
Momentum
Luna is part of OpenAI's GPT-5.6 model family and positions itself as the fastest and most cost-effective model in this series, alongside the flagship Sol and the balanced Terra. It was released for general availability on July 9, 2026, and targets cost-sensitive high-volume workloads such as customer support, classification, and lightweight agent workflows. Luna supports text and image inputs (multimodal) with text-only output, features a context window of approximately 1.05 million Token, and received an 80% price reduction on July 30, 2026. On Benchmarks such as the Artificial Analysis Coding Agent Index and Agents' Last Exam, Luna achieves values close to the flagship model Sol despite its low price.
Momentum-Verloop
09.05.07.08.
Features
| Key Benchmark (%) | Artificial Analysis Coding Agent Index: 74.6–75 points (max); Agents' Last Exam: approx. 50.3% |
| Context Window (Tokens) | 1,050,000 tokens (128,000 max output tokens) |
| License | Proprietary, commercial API access (not an open-weight model) |
| Multimodality | Yes: text and image input, text-only output |
| Platform | Available in ChatGPT Work, Codex, and OpenAI API (Plus, Pro, Business, Enterprise) |
| Price per 1M Tokens | $0.20 input / $1.20 output (since July 30, 2026, previously $1/$6) |
| Release Date | July 9, 2026 (general availability) |