GPT-5.5 vs
Muse Spark 1.2

Read the published evidence, route context, and missing facts before making a local decision. This page does not name a universal winner.

Models in this comparison

Provider identity and evidence state stay balanced across the pair.

O

OpenAI

GPT-5.5

Model type
Proprietary
Evidence state
Estimated evidence
Published context
1,000,000
VS
Model type
Proprietary
Evidence state
Estimated evidence
Published context
1,000,000

Key implications

Insufficient shared-metric coverage. Each finding is tied to a published metric, price, context, or modality fact.

  1. Input API price: Muse Spark 1.2 has the lower verified rate ($1.25 / 1M tokens vs $5 / 1M tokens).
  2. Output API price: Muse Spark 1.2 has the lower verified rate ($4.25 / 1M tokens vs $30 / 1M tokens).

Shared metric view

A radar is shown only when at least four compatible supported score metrics are published.

Comparable metric detail

  • AgenticGPT-5.5: 64.71 · Muse Spark 1.2: 56.48
  • CodingGPT-5.5: 72.5 · Muse Spark 1.2: 63.2
  • KnowledgeGPT-5.5: 77.7 · Muse Spark 1.2: 60.7
  • MathGPT-5.5: 71.1 · Muse Spark 1.2: Unavailable
  • MultimodalGroundedGPT-5.5: 65.3 · Muse Spark 1.2: Unavailable
  • ReasoningGPT-5.5: 79 · Muse Spark 1.2: Unavailable
  • OverallGPT-5.5: 72.92 · Muse Spark 1.2: 61.71

Source metrics

Friendly metric names and published units stay visible. Missing measurements remain unavailable rather than becoming a score.

Source metric comparison
MetricUnitGPT-5.5Muse Spark 1.2
Agenticscore64.7156.48
Codingscore72.563.2
Knowledgescore77.760.7
Mathscore71.1Unavailable
MultimodalGroundedscore65.3Unavailable
Reasoningscore79Unavailable
Overallscore72.9261.71

Agentic

Unit
score
GPT-5.5
64.71
Muse Spark 1.2
56.48

Coding

Unit
score
GPT-5.5
72.5
Muse Spark 1.2
63.2

Knowledge

Unit
score
GPT-5.5
77.7
Muse Spark 1.2
60.7

Math

Unit
score
GPT-5.5
71.1
Muse Spark 1.2
Unavailable

MultimodalGrounded

Unit
score
GPT-5.5
65.3
Muse Spark 1.2
Unavailable

Reasoning

Unit
score
GPT-5.5
79
Muse Spark 1.2
Unavailable

Overall

Unit
score
GPT-5.5
72.92
Muse Spark 1.2
61.71

Pricing and context

Verification is shown beside each selected route. Missing facts remain Not verified.

Route pricing and context comparison
FieldUnitGPT-5.5Muse Spark 1.2
Input API priceUSD / 1M tokens$5$1.25
Cached input API priceUSD / 1M tokens$0.5$0.15
Output API priceUSD / 1M tokens$30$4.25
Route contexttokens1,000,0001,000,000
Input modalitiespublished listNot verifiedNot verified
Output modalitiespublished listNot verifiedNot verified

Input API price

Unit
USD / 1M tokens
GPT-5.5
$5
Muse Spark 1.2
$1.25

Cached input API price

Unit
USD / 1M tokens
GPT-5.5
$0.5
Muse Spark 1.2
$0.15

Output API price

Unit
USD / 1M tokens
GPT-5.5
$30
Muse Spark 1.2
$4.25

Route context

Unit
tokens
GPT-5.5
1,000,000
Muse Spark 1.2
1,000,000

Input modalities

Unit
published list
GPT-5.5
Not verified
Muse Spark 1.2
Not verified

Output modalities

Unit
published list
GPT-5.5
Not verified
Muse Spark 1.2
Not verified

Evidence provenance

Source records, route identity, timestamps, and methodology are consolidated here without declaring either model a winner.

Publication time
Aug 30, 2026, 2:15 AM UTC
Freshness
Stale — Published weekly benchmark evidence has not refreshed within 8 days.
Methodology
benchlm: benchlm_raw_composite
Model records
  • GPT-5.5 — source benchlm · artifact models · model gpt-5-5
  • Muse Spark 1.2 — source benchlm · artifact models · model muse-spark-1-2
Selected price routes
  • GPT-5.5 — route benchlm:gpt-5-5 · source benchlm · provider openai
  • Muse Spark 1.2 — route benchlm:muse-spark-1-2 · source benchlm · provider meta

Switch model pair

Choose from this result’s current and reviewed related models. Switching opens a reviewed comparison; it does not change this result’s evidence.

Step 1

Start with popular models, or search the full selectable directory.

Step 2

Start with popular models, or search the full selectable directory.