Grok 4.20 Multi-Agent vs gpt-4o-all
| xAI Grok 4.20 Multi-Agent | OpenAI gpt-4o-all | |
|---|---|---|
| Vendor | xAI | OpenAI |
| Context window | 2,048,000 | — |
| Max output | 1,000,000 | — |
| Reasoning | Yes | No |
| Tool calling | Yes | No |
| File input | Yes | No |
| Input | text, image | — |
| Output | text | — |
| Released | 2026-03-09 | — |