modelgrep

Meta: Muse Spark 1.2 vs OpenAI: GPT-5.5

OpenAI: GPT-5.5 wins on more metrics (6 of 9), including intelligence index, coding index, gpqa diamond — but the right pick depends on what you optimize for. See the breakdown below.

MetricMeta: Muse Spark 1.2OpenAI: GPT-5.5
Intelligence Index54.154.8
Coding Index72.274.9
GPQA Diamond90%94%
Design Arena Elo1332
Speed (tokens/sec)12692
Latency6.3s2.3s
Input price /M$1.25$5.00
Output price /M$4.25$30.00
Context window1.0M1.1M
CapabilitiesReasoningToolsJSONVisionAudioReasoningToolsJSONVision

Frequently asked

Is Meta: Muse Spark 1.2 better than OpenAI: GPT-5.5?

OpenAI: GPT-5.5 wins on more metrics (6 of 9), including intelligence index, coding index, gpqa diamond — but the right pick depends on what you optimize for. See the breakdown below.

What are the biggest differences between Meta: Muse Spark 1.2 and OpenAI: GPT-5.5?

The table on this page compares Meta: Muse Spark 1.2 and OpenAI: GPT-5.5 metric by metric — intelligence benchmarks, coding score, speed, latency, context window and per-token price — with the winner marked on each row. Data refreshes hourly.