GPT-5.6 Luna Pro is 2.0× cheaper per million tokens (blended). GPT-5.6 Luna Pro has the larger context window (1,050,000 vs 262,144 tokens, 4.0×). Qwen3.8 27B is open-weights; the other is not.
GPT-5.6 Luna Pro vs Qwen3.8 27B
Live catalog fields. Best-in-row is highlighted.
GPT-5.6 Luna Pro
OpenAI · openai__gpt-5.6-luna-pro
Qwen3.8 27Bopen
Qwen · qwen__qwen3.8-27b
Identity
| Field | openai__gpt-5.6-luna-pro | qwen__qwen3.8-27b |
|---|---|---|
| Provider | OpenAI | Qwen |
| Slug | openai__gpt-5.6-luna-pro | qwen__qwen3.8-27b |
| Status | live | live |
| Open weights | No | Yes |
| License | — | — |
| HuggingFace | — | Qwen/Qwen3.8-27B |
Quality
| Field | openai__gpt-5.6-luna-pro | qwen__qwen3.8-27b |
|---|---|---|
| Quality index (0–100) | — | 87.0 |
Cost
| Field | openai__gpt-5.6-luna-pro | qwen__qwen3.8-27b |
|---|---|---|
| Input $ / 1M tokens | $0.20 | $0.21 |
| Cached input $ / 1M | $0.02 | $0.15 |
| Output $ / 1M tokens | $1.20 | $2.55 |
Context
| Field | openai__gpt-5.6-luna-pro | qwen__qwen3.8-27b |
|---|---|---|
| Max context tokens | 1,050,000 | 262,144 |
| Max output tokens | 128,000 | 131,072 |
Modalities
| Field | openai__gpt-5.6-luna-pro | qwen__qwen3.8-27b |
|---|---|---|
| Input | file, image, text | text, image, video |
| Output | text | text |