Proprietary

Vals Index

Updated 10/27/2026

A single measure of AI's potential economic impact — agentic model performance across finance, coding, legal, and tax tasks, weighted by each sector's share of U.S. GDP.

As of October 27, 2026, Claude Sonnet 5.5 ranks first on the Vals Index with 70.85%, followed by Claude Opus 5.5 (70.18%) and Gemini 4 Argon (69.24%).

Vals Index RankingsPerformance score across finance, coding, legal and tax
Vals Index•Oct 27, 2026
Industry:
FinanceCodingLegalTax
Showing best model from each lab
Vals IndexGDP-weighted benchmark
Vals Index•Oct 27, 2026
ACCURACY
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Vals Index leaderboard

Rank Model Accuracy Cost / Test Tokens / Test Duration / Test
1 Claude Sonnet 5.5 70.85% $18.70 78.59m 1h26m
2 Claude Opus 5.5 70.18% $28.12 59.46m 1h25m
3 Gemini 4 Argon 69.24% $13.37 23.31m 44m58s
4 Wonder Full 66.79% $6.81 18.37m 59m19s
5 GPT-6 Astra 65.02% $21.28 8.15m 33m39s
6 Wonder 64.88% $10.65 33.19m 35m24s
7 GPT-6.1 Sol 63.94% $3.61 9.40m 44m24s
8 Kimi K3.1 Pro 62.52% $6.44 20.14m 1h04m
9 DeepSeek V4.1 Flash 1017 61.26% $0.66 43.90m 39m55s
10 GPT-6.1 Terra 60.17% $2.92 17.44m 39m41s
11 GLM 5.3 59.73% $8.52 28.15m 1h04m
12 Qwen 3.8 Max 0902 59.05% $8.73 26.59m 1h46m
13 Claude Haiku 5.5 58.73% $3.17 38.15m 49m57s
14 Grok 4.7 58.56% $11.63 11.39m 33m34s
15 MiMo V2.6 Pro 57.81% $0.43 17.77m 1h13m
16 Gemini 3.8 Flash 55.95% $5.03 25.06m 35m58s
17 MiMo V2.6 Flash 54.83% $0.22 26.86m 1h07m
18 MiniMax-M3.1-Flash 53.78% $0.66 31.77m 43m18s
19 Hy4 Preview 53.21% $1.57 19.24m 59m23s
20 DeepSeek V4 Pro 0813 52.97% $2.50 43.35m 58m03s
21 Kimi K3 52.95% $7.17 15.30m 1h15m
22 GPT-6 Luna 52.32% $0.45 17.52m 32m23s
23 GLM 5.3 Flash 50.86% $1.13 62.42m 1h04m
24 Muse Spark Open 48.57% $4.72 9.80m 1h22m
25 Mercury 3 43.66% $0.48 20.32m 22m06s
26 Beam 1.0 43.42% - 5.95m 7m27s
27 Inkling 28.96% $1.85 7.55m 17m13s
28 Inkling Small 27.59% $0.40 5.38m 16m26s
Reasoning EffortAccuracy at each model's lowest, middle and default reasoning effort
Vals Index•Oct 27, 2026
Accuracy
Model:
Effort Level:
Index costs include Code Migration's cost, estimated from tokens (dashed rings). Error bars show ±1 standard error.
Vals Index Over TimeBest score from each lab, by model release date
Vals Index•Oct 27, 2026
AccuracyTime
Lab:
Viewing 15 lab performance frontiers.
75%70%65%60%55%50%45%40%35%30%25%
Jul '26Aug '26Sep '26Sep '26Oct '26

Motivation

As AI capabilities rapidly advance, understanding their potential to transform economic sectors has become critical for organizations making deployment decisions. Unlike existing aggregated metrics that treat all capabilities equally, the Vals Index is designed to reflect the potential impact of AI models on the U.S. economy. We accomplish this by computing a weighted average of model performance across key sectors, where each sector’s weight is proportional to its share of U.S. GDP.

Vals AI has developed a comprehensive suite of benchmarks measuring AI models’ ability to perform real-world tasks across finance, coding, legal, and tax work — benchmarks that no other party has full access to. The Vals Index aggregates six private and two public benchmarks to provide high signal into the real-world tradeoffs between capability, latency, and cost of deploying AI systems.


Results

Accuracy by Benchmark
Vals Index•Oct 27, 2026
Accuracy:
LowestHighest
Accuracy by Benchmark
ModelsFinanceCodingLegalTaxOverall
Claude Sonnet 5.567.3%75.9%64.1%92.4%87.4%48.1%10.4%42.0%70.9%
Claude Opus 5.567.8%75.8%65.2%90.3%80.5%50.5%9.2%45.6%70.2%
Gemini 4 Argon67.7%74.8%57.6%91.9%74.4%54.8%27.1%44.6%69.2%
Wonder Full67.6%75.0%58.1%86.0%61.7%53.4%23.3%43.0%66.8%
GPT-6 Astra60.4%72.7%59.6%89.6%78.0%39.4%7.1%20.7%65.0%
Wonder65.5%72.5%49.5%83.1%69.8%50.5%23.8%36.3%64.9%
GPT-6.1 Sol61.8%71.1%55.1%88.9%75.1%38.5%6.3%21.8%63.9%
Kimi K3.1 Pro61.5%70.0%63.6%84.9%59.7%37.5%11.7%24.9%62.5%
DeepSeek V4.1 Flash 101762.9%69.2%31.8%87.7%68.5%45.2%14.2%44.4%61.3%
GPT-6.1 Terra56.0%73.3%49.5%84.0%69.7%26.0%1.7%15.2%60.2%
GLM 5.365.0%69.1%38.9%78.1%54.1%49.0%14.6%39.7%59.7%
Qwen 3.8 Max 090258.8%72.0%38.9%77.1%54.5%46.2%15.4%49.7%59.0%
Claude Haiku 5.565.4%65.5%36.4%90.4%50.2%43.8%4.2%31.9%58.7%
Grok 4.760.6%71.5%28.8%86.2%51.8%47.1%18.3%34.2%58.6%
MiMo V2.6 Pro64.3%67.3%31.3%85.2%47.1%47.1%13.8%32.4%57.8%

Methodology

AI models are advancing rapidly in their ability to handle complex, real-world tasks across critical economic sectors. The results demonstrate that frontier models are becoming increasingly capable at automating work in finance, coding, legal, and tax services — domains that collectively represent a substantial portion of economic activity.

Benchmark Selection, Economic Weighting, and Formula

The Vals Index aggregates performance across four sectors — Finance, Coding, Legal, and Tax — each weighted in proportion to its share of U.S. GDP, using Bureau of Economic Analysis value-added-by-industry data (as published on FRED). While this represents a vast oversimplification of how AI might impact the economy, it provides a useful proxy for measuring the potential economic significance of model capabilities:

Finance: Finance & Insurance, ~8.0% of U.S. GDP

Coding: Information sector (the closest GDP proxy for software work), ~5.6% of U.S. GDP

Legal: Legal services, ~1.2% of U.S. GDP

  • Legal Research Bench: Case and statute research with citation-backed answers
  • HLAB-Vals-1.1: Harvey’s Legal Agent Benchmark, long-horizon legal work product creation

Tax: Accounting and tax preparation services (NAICS 5412), ~0.5% of U.S. GDP

  • Tax Agent Bench: Research-grade US corporate tax questions answered with cited authority

Each sector is the average of its benchmarks, and the sectors are combined with the following formula:

Finance = AVG(FinanceAgentV2_1, EMBV1_1)
Coding = AVG(TBench4, VibeCodeBenchV1_1, CodeMigrationV1_1)
Legal = AVG(LegalResearch, HLABV1_1)
Tax = TaxAgentBench
Vals_Index = (8.0 * Finance + 5.6 * Coding + 1.2 * Legal + 0.5 * Tax) / 15.3

Component Scores

Each benchmark column on the index is that benchmark’s own published standalone score — the same number, under the same methodology. The exception is Code Migration v1.1: there, the index scores a fixed subset of the published run: 50 of the 120 CLI migration tasks, plus all 10 COBOL tasks, weighted 75% CLI and 25% COBOL to match the standalone benchmark’s balance. This subset was chosen by Monte Carlo search, scored against the full 120-task leaderboard. The chosen subset reproduces the full 120-task result to Spearman 0.99 and 0.8 points of mean absolute accuracy error, with no model moving more than three ranks; on models held out of the selection, mean absolute error is 1.1 points. The subset was chosen on Code Migration v1.0; on Code Migration v1.1 it reproduces the full result to Spearman 0.99 and 1.4 points of mean absolute error, with no model moving more than two ranks.


Updates

10/19/2026

Released Vals Index v2.2:

9/25/2026

Released Vals Index v2.1:

  • Added a Tax sector. Tax Agent Bench, a private benchmark of research-grade US corporate tax questions, enters as its own sector weighted 0.5 — the GDP share of accounting and tax preparation services (NAICS 5412), which the BEA files under professional services rather than Finance & Insurance. The denominator moves from 14.8 → 15.3.
  • Updated the coding bucket to Terminal-Bench 4.0. Terminal-Bench 4.0 replaces 2.1 in the Coding sector; Finance and Legal components are unchanged. Terminal-Bench 4.0 is substantially harder, so index scores are lower than under v2.

8/13/2026

Released Vals Index v2:

  • Added EMB in place of CorpFin. A private benchmark for building complex financial models in Excel.
  • Added Code Migration to the coding bucket. A private benchmark involving porting projects to a set of four languages, including COBOL modernization.
  • Added Legal Research Bench to the returning Legal sector. A private benchmark involving answering legal questions grounded in case law.
  • Added HLAB to the returning Legal sector. Harvey’s Legal Agent Benchmark, long-horizon legal work product creation.
  • Removed SWE-Bench Verified from the coding bucket. SWE-Bench has become saturated. Coding now averages Terminal-Bench 2.1, Vibe Code Bench, and Code Migration equally.

5/27/2026

  • Updated the coding bucket to Terminal-Bench 2.1. The Vals Index now evaluates coding performance with Terminal-Bench 2.1 while keeping the same 0.25 coding weight.

5/13/2026

  • Swapped Finance Agent to Finance Agent v2. Finance now uses the Finance Agent v2 index subset, averaging three runs per model.

5/4/2026

  • Added Vibe Code Bench to the coding bucket. Coding is now a weighted average of three benchmarks (SWE-Bench Verified 0.25, Terminal-Bench 2.0 0.25, Vibe Code Bench 0.5), giving end-to-end app-building tasks half of the coding signal. VCB is evaluated on a 22-task subset selected for coverage across UI, data, and workflow patterns.
  • Removed the Law sector (CaseLaw). The CaseLaw benchmark had become saturated, and was no longer providing useful differentiation between models. Consequently, it was removed from the index. The denominator was rebalanced from 3.7 → 3.4 to reflect the dropped 0.3 law weight, and the Industry Average chart no longer displays a Law column.