GPT-5.6 Terra vs Muse Spark 1.3
| OpenAI GPT-5.6 Terra | Meta Muse Spark 1.3 | |
|---|---|---|
| Vendor | OpenAI | Meta |
| Context window | 1,050,000 | 1,048,576 |
| Max output | 128,000 | — |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| File input | Yes | Yes |
| Input | text, image | text, image, video, file |
| Output | text | text |
| Released | 2026-07-09 | 2026-09-02 |