Compare · AI models
Muse Spark 1.3 vs GPT-5.3 Codex
RANKED BY EPOCH CAPABILITIES INDEX (ECI)
#15 VS #16
CHECKED 28 SEPT 2026
Side by side
Verdict
Muse Spark 1.3 ranks #15 of 20 on Epoch Capabilities Index (ECI) (156.89); GPT-5.3 Codex ranks #16 (156.84).
Rank 15 of 20 · leads
Epoch Capabilities Index (ECI)
156.89
MakerMeta AI
Date2026
Verified—
Evidence
Epoch AI epoch_capabilities_index/eci_scores.csv (LLM Benchmark Data ZIP, fetched 2026-09-28). ECI 156.89, accessibility API access, release date 2026-09-02. Not matched in Statlyte’s dataset this run.Rank 16 of 20
Epoch Capabilities Index (ECI)
156.84
MakerOpenAI
Date2026
Verified—
Evidence
Epoch AI epoch_capabilities_index/eci_scores.csv (LLM Benchmark Data ZIP, fetched 2026-09-28). ECI 156.84, accessibility API access, release date 2026-02-05. Pricing/context via Statlyte (statlyte.com/models/openai/gpt-5-3-codex), MIT licensed.Try another pair
More Muse Spark 1.3 matchups
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- Muse Spark 1.3 vs Claude Opus 5
- Muse Spark 1.3 vs GPT-5.5 Pro
- Muse Spark 1.3 vs GPT-5.6 Sol
- Muse Spark 1.3 vs GPT-5.6 Terra
- Muse Spark 1.3 vs GPT-5.5
- Muse Spark 1.3 vs GPT-5.4 Pro
- Muse Spark 1.3 vs Claude Opus 4.8
- Muse Spark 1.3 vs Gemini 3.7 Flash
- Muse Spark 1.3 vs Kimi K3
Source Ranking: Epoch AI, AI Benchmarking Hub, Epoch Capabilities Index (epoch.ai/data/benchmark_data.zip, CC BY 4.0). Per-entry pricing/context:…
Last checked 28 Sept 2026