Compare · ModelsLive · 2 picked · head to head
GPT-5.5 vs Muse Spark
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.5 wins on 1/1 benchmarks
GPT-5.5 wins 1 of 1 shared benchmarks. Leads in knowledge.
Category leads
knowledge·GPT-5.5
Hype vs Reality
Attention vs performance
GPT-5.5
#2 by perf·#9 by attention
Muse Spark
#79 by perf·no signal
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
Meta AI
$1.79T·Tier 1
Head to head
1 benchmark · 2 models
GPT-5.5Muse Spark
GPQA diamond
GPT-5.5 leads by +7.2
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GPT-5.5
93.6
Muse Spark
86.4
Full benchmark table
| Benchmark | GPT-5.5 | Muse Spark |
|---|---|---|
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 93.6 | 86.4 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $5.00 | $30.00 | 400K tokens (~200 books) | $112.50 | |
| — | — | — | — |