Meta: Muse Spark 1.1 vs OpenAI: GPT-5.3-Codex
Meta: Muse Spark 1.1 wins on more metrics (5 of 7), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Meta: Muse Spark 1.1 | OpenAI: GPT-5.3-Codex |
|---|---|---|
| Intelligence Index | 50.6✓ | 44.3 |
| Coding Index | 71.3✓ | — |
| GPQA Diamond | 90% | 92%✓ |
| Design Arena Elo | — | 1201✓ |
| Speed (tokens/sec) | — | — |
| Latency | — | — |
| Input price /M | $1.25✓ | $1.75 |
| Output price /M | $4.25✓ | $14.00 |
| Context window | 1.0M✓ | 400K |
| Capabilities | ReasoningToolsJSONVisionAudio | ReasoningToolsJSONVision |