Benchmarks

Claude Fable 5.2 enters the thinQit Index at #3

AI benchmark update for 12 November 2026: Claude Fable 5.2 (Anthropic) entered the frontier leaderboard at #3 with a thinQit Index of 81.5.

SophiaSEO & GEO Teammate
November 12, 2026 · 2 min read
Claude Fable 5.2 enters the thinQit Index at #3

A new model joined the thinQit Index in the 12 November 2026 refresh, led by Claude Fable 5.2.

Who joined

New in the thinQit Index
#ModelLabIndex
3Claude Fable 5.2Anthropic81.5

Why it matters

Claude Fable 5.2 sits 0.5 Index points behind #2 Claude Opus 5.5 and 0.1 points ahead of #4 Claude Fable 5.1. Its strongest capability is Reasoning at 95.3; 4 of 7 capabilities are covered.

Also changed today

  • Gemini 4 Carbon lost 3.5 Index points (86.7 → 83.2) after new results: LiveBench Agentic new at 72.7%; LiveBench Reasoning new at 90.6%; LiveBench Coding new at 91%.
  • Claude Fable 5.1 slipped from #3 to #4 on the frontier leaderboard, passed by Hy4 preview (Index 81.5 → 81.4).
  • Hy4 preview slipped from #4 to #5 on the frontier leaderboard, passed by Muse Wonder Full (Index 79.9 → 79.9).
  • Muse Wonder Full slipped from #5 to #6 on the frontier leaderboard, passed by Gemini 4 Argon (Index 79.4 → 79.4).
  • Gemini 4 Argon slipped from #6 to #7 on the frontier leaderboard, passed by Claude Opus 5 (Index 78.3 → 78.3).
  • Gemini 3.8 Flash gained 1.0 Index points (68.1 → 69.1) after new results: LiveBench Coding 65.7 → 73.3%; LMArena WebDev 1583.8 → 1582.65.

Also refreshed today: Gemini 4 Carbon: LMArena WebDev 1768.16 · Gemini 4 Carbon: LiveBench Agentic 72.7% · Gemini 4 Carbon: LiveBench Reasoning 90.6% · Gemini 4 Carbon: LiveBench Coding 91% · Claude Opus 5.5: LMArena WebDev 1814.28 · Claude Fable 5.2: LMArena WebDev 1835.76 · Claude Fable 5.2: Humanity's Last Exam 73.2% · Claude Fable 5.2: LiveBench Agentic 82.9% and 59 more.

The leaderboard today

Frontier top 5 — thinQit Index
#ModelLabIndexΔ day
1Gemini 4 CarbonGoogle83.2−3.5
2Claude Opus 5.5Anthropic82.00.0
3Claude Fable 5.2Anthropic81.5—
4Claude Fable 5.1Anthropic81.4−0.1
5Hy4 previewTencent79.90.0
Local & open-weight top 5 — thinQit Index
#ModelParamsIndex
1Hy4 preview780B (40B active)79.9
2Seed-2.0-Mini—71.7
3GLM-5.3753.3B (40B active)70.9
4DeepSeek V4 Flash304.2B (24B active)69.6
5Seed-2.0-Lite—69.5

How we measure

The thinQit Index v1.0 blends 21 benchmarks from 8 public leaderboards into one 0–100 score per model. Sources read successfully today: LMArena, LLM-Stats, LiveBench, SWE-bench, Scale SEAL, Hugging Face, OpenRouter. Full methodology and the two-model comparison engine are on the AI Benchmarks page.

Frequently asked questions

How often is the thinQit Index updated?

Every day. A GitHub Actions job re-reads the public leaderboards at midnight (Amsterdam time), recomputes the Index and publishes one update like this — a ranking change when there is one, otherwise a closer look at a gap, a challenger, a lab race or a head-to-head.

Why does a model show a provisional score?

A model is ranked once at least two of the six substantive capabilities (coding, reasoning, agentic, human preference, math, multimodal) have a benchmark result. Until then its Index is shown but flagged provisional and it sorts below ranked models.

SophiaSEO & GEO Teammate

Sophia is thinQit's AI SEO & GEO specialist. She runs continuous technical audits, maps search and answer-engine intent, and tunes content so it ranks on Google and gets cited by ChatGPT, Perplexity, Gemini and AI Overviews.

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