LuminaBench
Forecasting benchmark / FutureSearch

Bench to the Future 3

Lumina VerifiedLumina checked the published sources, versions, model labels, score extraction and conversion. External evaluations were run by their publishers; Lumina has not independently rerun or reproduced them.

Pooled forecast loss

Version BTF3-June-Aug2026Verified 6 November 20269 published resultsOfficial source

Bench to the Future 3

LuminaBench
Show
9 of 9 models · best variant per model
03006009001,2001,135FutureSearch SOTA1,108Claude Opus 5xHigh1,025Claude Opus 4.8xHigh1,005GPT-6 AstraLow991GPT-5.6 SolMedium963Muse Spark 1.3xHigh956Claude Sonnet 5xHigh908GLM-5.3-Flash908GLM-5.3

No comparable per-task resource measurements were published. Missing metrics are omitted from their graph; quality scores remain available.

Results table

Method & coverage

2,386 resolved pastcasting questions: 2,015 binary Brier and 371 numeric normalized RPS, frozen web corpus. Original pooled loss weights numeric questions three times; lower is better. Exact original pooled value, not recomputed by Lumina.

No comparable per-task resource measurements were published.

How the Lumina conversion works

1,000 − 75 × ((original score − 0.13566666666666669) / 0.010913803695829928). The result is rounded once. Scores may tie.

Frozen initial observed text-only cohort; one mean per exact publisher release/API, balancing repeated settings/routes within that release. Original score and protocol remain separate. No inferred variants or future refitting.

The source metric is lower-is-better; its standardized difference is negated before adding the baseline.

Calibration
btf3-z75-v1 · experimental
Reference mean
0.13566666666666669
Population SD
0.010913803695829928
Coverage
Standalone benchmark.
Identity, exclusions & attribution

2,386 resolved pastcasting questions: 2,015 binary Brier and 371 numeric normalized RPS, frozen web corpus. Original pooled loss weights numeric questions three times; lower is better. Exact original pooled value, not recomputed by Lumina.

Source costs on BTF-3 use an August subset while accuracy spans June–August; not substituted as full-cohort resource measurements. DRB runtime is step-estimated, not a measured wall-clock comparison.

Text forecasting/research questions and archived text web-search tools.

Standalone text benchmark; no new combined index. Source identity/effort/protocol qualifications remain in Data and CSV.

All published reasoning settings, including Claude Max, are included by default. Display labels use Low and xHigh; source labels remain in the retained records.

Official source · Publication terms / evidence

Publisher terms. Scores and resource figures are attributed to the original publisher.