Claude Fable - Mythos 5.1 vs Muse Spark
Claude Fable - Mythos 5.1 and Muse Spark side by side on Above the Fog’s AI hype radar, on Oct 29, 2026: Claude Fable - Mythos 5.1 is 💤 Quiet with a hype score of 0 and Muse Spark is 💤 Quiet with 0. The radar’s curated relations list them as competitors.
Data note: 7 of the last 14 days were not collected live. No collection ran on Oct 22–Oct 28, or a later run refilled those days at once. Every hype score is measured against the 14 days before it and those days are thin, so the scores, the stages and the week-over-week theme trends may read higher than they are until they leave that window on Nov 12.
At a glance
| Measure | Claude Fable - Mythos 5.1 | Muse Spark |
|---|---|---|
| Stage | 💤 Quiet | 💤 Quiet |
| Hype score | 0 | 0 |
| 7-day change | −2.7 | 0 |
| In hype since | not in hype now | not in hype now |
| Peak, 30 days | 15.6 on Oct 13, 2026 | 69.2 on Oct 16, 2026 |
| Stories in 7 days | 31 | 5 |
| Share of voice, 7 days | 0.3% | 0.1% |
| Sources above normal | 0 of 17 | 0 of 18 |
| Category | 🧠 Models | 🧠 Models |
Hype score, last 30 days
Both hype scores by day, newest first; on the page’s chart, Claude Fable - Mythos 5.1 is the solid line and Muse Spark the dashed one.
| Day | Claude Fable - Mythos 5.1 | Muse Spark |
|---|---|---|
| Oct 29, 2026 | 0 | 0 |
| Oct 28, 2026 | 0 | 0 |
| Oct 27, 2026 | 0.8 | 0 |
| Oct 26, 2026 | 0 | 0 |
| Oct 25, 2026 | 0 | 0 |
| Oct 24, 2026 | 0 | 0 |
| Oct 23, 2026 | 6.4 | 0 |
| Oct 22, 2026 | 2.7 | 0 |
| Oct 21, 2026 | 2.7 | 11.8 |
| Oct 20, 2026 | 0 | 14.6 |
| Oct 19, 2026 | 0 | 1.3 |
| Oct 18, 2026 | 0 | 2.3 |
| Oct 17, 2026 | 11.7 | 37.6 |
| Oct 16, 2026 | 12.8 | 69.2 |
| Oct 15, 2026 | 11.6 | 69 |
| Oct 14, 2026 | 11 | 4 |
| Oct 13, 2026 | 15.6 | 31.9 |
| Oct 12, 2026 | 12.4 | 34.4 |
| Oct 11, 2026 | 0 | 0 |
| Oct 10, 2026 | 3 | 0.3 |
| Oct 9, 2026 | 10.7 | 0 |
| Oct 8, 2026 | 11.2 | 1.8 |
| Oct 7, 2026 | 12 | 0.9 |
| Oct 6, 2026 | 2.1 | 2 |
| Oct 5, 2026 | 2.2 | 0.8 |
| Oct 4, 2026 | 0 | 2.6 |
| Oct 3, 2026 | 0 | 3.5 |
| Oct 2, 2026 | 0 | 1.4 |
| Oct 1, 2026 | 0 | 0 |
| Sep 30, 2026 | 0.6 | 9.2 |
Shared themes
What the stories of both topics in the last 7 days are about, as classified by the Jev model (a story can carry several themes):
- Models — 71% of Claude Fable - Mythos 5.1’s stories, 100% of Muse Spark’s
Claude Fable - Mythos 5.1: stories behind it
- Pensez-vous que Claude Fable 5.5 sortira avant ou après l'introduction en bourse ? C'est un point crucial pour l'entreprise qui prévoit un lancement début novembre ! — Reddit (r/Anthropic) · Oct 28 · score 0 · 3 comments
- Claude Fable 5.1 Agent Test: Sonnet Tied It at 1/8 the Cost — DEV Community (dev.to) (#ai) · Oct 30 · score 0 · 1 comment
- Is it me or is Op. 5.5 a better coder than Fable 5.1 — Reddit (r/ClaudeCode) · Oct 29
- GPT-6 Astra vs Claude Fable 5.1: Same $10 / $50 List Price, Different Bill — DEV Community (dev.to) (#openai) · Oct 30 · score 0 · 0 comments
- Nova beat Fable 5 with Opus 4.8 — Hacker News (novaagentos.ai) · Oct 29 · score 1 · 0 comments
Muse Spark: stories behind it
- Muse-Glimmer — Reddit (r/LocalLLaMA) · Oct 29 · score 1 · 0 comments
- Muse-Glimmer-30B FP8 – 110 t/s combined decode – 2x Arc Pro B70 (TP2, dflash d15, 180W) — Reddit (r/LocalLLM) · Oct 29
- Muse Glimmer 30B on Strix Halo: a week of measurements — DEV Community (dev.to) (#ai) · Oct 26 · score 3 · 1 comment
- Allowance table update for GPT & competitors and Terra opinion — Reddit (r/codex) · Oct 28 · score 41 · 15 comments
- Build Day: OpenRouter x Meta — Luma (SF AI events) (OpenRouter Events) · Oct 30 · score 0