LuminaBench
Finance benchmark / Vals AI

Tax Agent Bench

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.

Accuracy

Version 1-updated-2026-11-05Verified 6 November 202682 published resultsOfficial source

Tax Agent Bench

LuminaBench
Show
20 of 82 models · best variant per model
03006009001,2001,160Gemini 4 CarbonHigh1,147alibaba/qwen3.8-max-internal1,144Claude Fable 5.1Max1,123Claude Opus 5.5Max1,123Claude Opus 5Max1,117Gemini 4 ArgonHigh1,116DeepSeek V4.1 Flash 1017Max1,108Wonder FullMax1,104Muse Spark 1.3 MaxMax1,102Claude Sonnet 5.5Max1,088GLM 5.3Max1,084Models0.991,080Claude Fable 5Max1,068WonderMax1,066Muse Spark 1.3xHigh1,057Hy41,056Grok 4.7xHigh1,051Kimi K3Max1,049Grok 4.6High1,047Muse Spark 1.2xHigh

Lumina Score vs Cost per Task

Published per-test USD and Duration/Test retain their native definitions. Tokens use published averages or original aggregate counts divided by token_tasks_measured; total = input + output, with cache and reasoning subsets retained separately rather than counted twice. No task values are inferred from token prices or compute budgets.

LuminaBench
15 of 81 families
Lower resource use and higher score (green); higher resource use and lower score (red). Guides split at the visible selection’s medians.$0.3$1$3$108009001,0001,1001,200Cost per task · USD (log scale)Lumina ScoreGemini 4 CarbonModelsalibaba/qwen3.8-max-internalGemini 4 ArgonDeepSeek V4.1 Flash 1017Muse Spark 1.3 Max

Lumina Score vs Tokens

Published per-test USD and Duration/Test retain their native definitions. Tokens use published averages or original aggregate counts divided by token_tasks_measured; total = input + output, with cache and reasoning subsets retained separately rather than counted twice. No task values are inferred from token prices or compute budgets.

LuminaBench
15 of 82 families
1M3M8009001,0001,1001,200Total tokens per task (log scale)Lumina ScoreGemini 4 Carbonalibaba/qwen3.8-max-internalClaude Fable 5.1Claude Opus 5Claude Opus 5.5Gemini 4 Argon

Lumina Score vs Time per Task

Published per-test USD and Duration/Test retain their native definitions. Tokens use published averages or original aggregate counts divided by token_tasks_measured; total = input + output, with cache and reasoning subsets retained separately rather than counted twice. No task values are inferred from token prices or compute budgets.

LuminaBench
15 of 82 families
Lower resource use and higher score (green); higher resource use and lower score (red). Guides split at the visible selection’s medians.10301008009001,0001,1001,200Time per task · min (log scale)Lumina ScoreGemini 4 CarbonMuse Spark 1.3 Maxalibaba/qwen3.8-max-internalClaude Fable 5.1Claude Opus 5Gemini 4 Argon

Published per-test USD and Duration/Test retain their native definitions. Tokens use published averages or original aggregate counts divided by token_tasks_measured; total = input + output, with cache and reasoning subsets retained separately rather than counted twice. No task values are inferred from token prices or compute budgets. Missing metrics are omitted from their graph; quality scores remain available.

Results table

Method & coverage

Tax Agent Bench corporate U.S. tax research, private 193-question test set, text authority retrieval/citations and strict primary accuracy. Alternative weighted pass metric not substituted.

Published per-test USD and Duration/Test retain their native definitions. Tokens use published averages or original aggregate counts divided by token_tasks_measured; total = input + output, with cache and reasoning subsets retained separately rather than counted twice. No task values are inferred from token prices or compute budgets.

How the Lumina conversion works

1,000 + 75 × ((original score − 24.778121951219507) / 12.679087065494748). 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.

Calibration
vals-tax-agent-z75-v1 · experimental
Reference mean
24.778121951219507
Population SD
12.679087065494748
Coverage
Standalone benchmark.
Identity, exclusions & attribution

Tax Agent Bench corporate U.S. tax research, private 193-question test set, text authority retrieval/citations and strict primary accuracy. Alternative weighted pass metric not substituted.

Publisher standard errors retained; no confidence level or interval inferred. Aggregate reporting scope is recorded in the current source-specific publication review.

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.