Skip to content

GPT-5.4 Mini vs Muse Spark 1.2 Contributor

Signal-by-Signal Comparison
SignalGPT-5.4 MiniDeltaMuse Spark 1.2 Contributor
Capabilities
100
--
100
Benchmarks
90
+90
0
Pricing
96
-4
100
Context window size
89
-7
96
Recency
98
-2
100
Output Capacity
82
-14
96
Overall Result
1 wins
of 6
4 wins
Muse Spark 1.2 Contributor wins 4 of 6 signals

Score History

Score History (28 data points)
GPT-5.4 MiniMuse Spark 1.2 Contributor
GPT-5.4 Mini

79.3

current score

Leader

GPT-5.4 Mini

right now

Muse Spark 1.2 Contributor

40

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

GPT-5.4 Mini

OpenAI

Per request$0.003000
Daily$10.00
Monthly$300.00
Annual$3600.00

Muse Spark 1.2 Contributor

meta

Best Value
Per request$0.000200
Daily$0.67
Monthly$20.00
Annual$240.00

Muse Spark 1.2 Contributor saves you $280.00/month

That's $3360.00/year compared to GPT-5.4 Mini at your current usage level of 100K calls/month.

93% cheaper
Choose Muse Spark 1.2 Contributor for cost optimization

GPT-5.4 Mini pricing:
Input:$0.75/M tokens
Output:$4.50/M tokens
Muse Spark 1.2 Contributor pricing:
Input:$0.10/M tokens
Output:$0.20/M tokens
Winner
GPT-5.4 Mini

OpenAI

79

Composite Score

Muse Spark 1.2 Contributor

meta

40

Composite Score

Signal-by-Signal Comparison
MetricGPT-5.4 MiniMuse Spark 1.2 ContributorWinner
Overall Score
79
40
GPT-5.4 Mini
Rank#91#257
GPT-5.4 Mini
Quality Rank#91#257
GPT-5.4 Mini
Adoption Rank#91#257
GPT-5.4 Mini
Parameters------
Context Window400K1049K
Muse Spark 1.2 Contributor
Pricing$0.75/$4.50/M$0.10/$0.20/M--
Signal Scores
Capabilities
100
100
GPT-5.4 Mini
Benchmarks
90
--
GPT-5.4 Mini
Pricing
96
100
Muse Spark 1.2 Contributor
Context window size
89
96
Muse Spark 1.2 Contributor
Recency
98
100
Muse Spark 1.2 Contributor
Output Capacity
82
96
Muse Spark 1.2 Contributor
Benchmark Head-to-Head(11 benchmarks)
GPT-5.4 Mini: 0Muse Spark: 0
GPT-5.4 Mini
Muse Spark
Normalized 0-100%
MMLU
94%-
MMLU-Pro
87%-
GPQA Diamond
88.5%-
MATH-500
95.5%-
HumanEval
97.5%-
SWE-bench Verified
80%-
IFEval
93.5%-
BBH
92%-
Arena Elo
1485-
LiveBench
79%-
HLE
39%-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

GPT-5.4 MiniStrong Performer

Scores 79/100 (rank #91), placing it in the top 69% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Muse Spark 1.2 ContributorEntry Level

Scores 40/100 (rank #257), placing it in the top 12% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.4 Mini has a 39-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose GPT-5.4 Mini when you need:

  • Step-by-step reasoning and chain-of-thought problem solving

Choose Muse Spark 1.2 Contributor when you need:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (1049K token context)
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
GPT-5.4 Mini
Input cost$0.75/M tokens
Output cost$4.50/M tokens
Cost per quality point$0.066
Est. monthly (1M tokens/day)$78.75
Muse Spark 1.2 ContributorBest Value
Input cost$0.10/M tokens
Output cost$0.20/M tokens
Cost per quality point$0.007
Est. monthly (1M tokens/day)$4.50

Muse Spark 1.2 Contributor offers 94% better value per quality point. At 1M tokens/day, you'd spend $4.50/month with Muse Spark 1.2 Contributor vs $78.75/month with GPT-5.4 Mini - a $74.25 monthly difference.

Latency & Speed
GPT-5.4 MiniFaster
Speed score0/100
Muse Spark 1.2 Contributor
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

GPT-5.4 Mini

Customer support chatbot

Suitable for user-facing chat with competitive response times. Muse Spark 1.2 Contributor also offers lower per-token costs for high-volume support

GPT-5.4 Mini

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Muse Spark 1.2 Contributor

Batch data extraction

Lower output pricing ($0.20/M) reduces costs when processing thousands of records daily

Muse Spark 1.2 Contributor

Creative writing & content

Higher overall composite score (79/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.4 Mini

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

GPT-5.4 Mini
Which Should You Choose?
Our recommendation:
GPT-5.4 Mini

GPT-5.4 Mini clearly outperforms Muse Spark 1.2 Contributor with a significant 39.3-point lead. For most general use cases, GPT-5.4 Mini is the stronger choice. However, Muse Spark 1.2 Contributor may still excel in niche scenarios.

GPT-5.4 Mini
Recommended

by OpenAI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by meta

  • Choose for Cost - 94% lower pricing; better value at scale
Capability Comparison
CapabilityGPT-5.4 MiniMuse Spark 1.2 Contributor
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

GPT-5.4 Mini

OpenAI

$6.75
estimated monthly cost

Muse Spark 1.2 Contributor

meta

Best Value
$0.4200
estimated monthly cost

Muse Spark 1.2 Contributor saves you $6.33/month

That's 94% cheaper than GPT-5.4 Mini at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGPT-5.4 MiniMuse Spark 1.2 Contributor
Context Window400K1.0M
Max Output Tokens128,000943,718
Open SourceNoNo
CreatedMar 17, 2026Aug 21, 2026
Last updated: 21m ago

Related comparisons

GPT-5.4 Mini vs Muse Spark 1.2 Contributor (2026) | LM Market Cap