Trust & Factuality · compositePhoto finish
Trust & Factuality race
Avoiding hallucinations and expressing uncertainty honestly.
- Leader
- Fable 5.1
- Margin
- 0.3 pts
- 0.3% ahead
- Weeks at #1
- 9
- in a row
- Changes
- 4
- in 2026
Warming up the track…
Oct 19, 2026Fable 5.1 leads
2025Apr ’25Jul ’25Oct ’252026Apr ’26Jul ’26Oct ’26
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Score history
Top 6 today over the leader's frontier · click to jump to a week
#1 frontierFable 5.1Opus 5.5GPT-6 AstraGPT-6.1 SolGemini 4 ArgonSonnet 5.5
Reigns at #1
Longest: GPT-5, 14 weeks (from Aug 2025).
Inside this race
What makes up trust & factuality
Why this race matters
Every other score is worth less if you cannot trust the answer.
How it is scored
Normalised subcategory scores, equally weighted.
Unit: indexHigher is betterPhoto finish under 0.6 ptsDominant over 3.5 pts
Data provenance
Knowledge accuracy with a penalty for confident wrong answers.
SimpleQA Verified
Short factual questions.
Scores here are illustrative placeholders that mimic real benchmark patterns. Swap in live data through the score provider. Methodology