Intelligence Index
0147.0
> 79% OF MODELS
OpenAI
GPT-5.6 Luna
Updated: September 2026
The fastest and most affordable GPT-5.6 model, tuned for responsive assistants and high-volume subagent work.
Specifications
- Context
- 1M
- Max Output
- 128K
- Input Modalities
- Image, Text, File
- Output Modalities
- Text
- Input
- $0.1/M
- Output
- $0.6/M
Capabilities
VISIONTHINKINGCODINGWRITING
Similarly Priced Models
| Model | Provider | Context | Input Price | Output Price |
|---|---|---|---|---|
| Qwen3.5-9B | Qwen | 262K | $0.1/M | $0.15/M |
| ByteDance Seed: Seed-2.0-Mini | ByteDance | 262K | $0.1/M | $0.4/M |
| Qwen3.5 Flash | Qwen | 1M | $0.1/M | $0.4/M |
| Ministral 3 3B 2512 | MistralAI | 131K | $0.1/M | $0.1/M |
| Voxtral Small 24B 2507 | MistralAI | 33K | $0.1/M | $0.3/M |
Performance Metrics
Coding Index
0263.3
> 72% OF MODELS
Agentic Index
0341.0
> 73% OF MODELS
Average Response Performance
- Output Speed
- 108 tok/s
- Time To First Token
- 14.73s
- Time To First Answer Token
- 14.73s
- End To End Response Time
- 19.36s
DATA SOURCE: Artificial Analysis