Vals Index v2.1
Version 2.1 of Vals AI's GDP-weighted index, which moved coding to Terminal-Bench 4.0 and added a tax sector.
Released 25 September 2026. Terminal-Bench 4.0 replaced 2.1, and Tax Agent Bench entered at weight 0.5, so the denominator rose from 14.8 to 15.3. Finance and legal were unchanged.
- Made by
- Vals AI
- Released
- September 2026
- Kind
- Composite work indices
- Scored
- Graded by a model
- Answers
- Agent task
- Tasks
- Public, plus a private test set
- Strongest model tested
- GPT-6 Astra #3 on the capability index
- Last in a launch post
- October 2026
- Last model added
- October 2026
- Scores refreshed
- November 12th, 2026
Gemini 4 Argon leads with 68.9%
Best score per model from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Every run is in the next chart.
- 68.9
Gemini 4 Argon
- 67.0 Claude Sonnet 5.5
- 67.0 Claude Opus 5.5
- 65.8 Claude Fable 5.1
- 64.6
Muse Wonder Full
- 63.7 Claude Opus 5
- 63.1 GPT-6 Astra
- 61.4 Claude Fable 5
- 61.1 GPT-6.1 Sol
- 61.1
Muse Wonder
- 58.2
Muse Spark 1.3
- 58.0 GPT-5.6 Sol
- 57.5 GPT-6 Sol
- 56.6
DeepSeek V4.1 Flash 1017
- 55.2 MiMo-V2.6 Pro
- 55.1 Claude Opus 4.8
- 55.0 Grok 4.7
- 54.9
Gemini 3.8 Flash
- 54.4 Claude Haiku 5.5
- 53.5 GLM-5.3
- 53.2 MiMo-V2.6 Flash
- 53.1 GPT-5.6 Terra
- 52.1 Grok 4.6
- 51.9 Claude Sonnet 5
- 51.7 GPT-5.6 Luna
- 51.3
DeepSeek V4.1 Flash
- 51.3
Gemini 3.7 Flash
- 51.2 GPT-6 Luna
- 50.9
Ember-1
- 50.3 Kimi K3
- 49.9
Tencent Hy4 preview
- 49.4
Step 5 Preview
- 49.3
Muse Spark 1.2
- 48.7
Mistral Large 4 Preview
- 48.3
Qwen 3.8 Max
- 48.0
DeepSeek V4 Flash 0731
- 47.6
DeepSeek V4 Pro 0813
- 46.6
Muse Spark Open
- 44.8
Gemini 3.5 Flash
- 44.7 Grok 4.5
- 44.6 GLM-5.3-Flash
- 38.6
DeepSeek-V4-Pro
- 36.5
MiniMax-M3
- 33.8 MiMo-V2.5-Pro
- 33.4
Gemini 3.1 Pro
- 33.2 GPT-5.4 Mini
- 28.7
Inkling
- 25.5
Inkling-Small
- 8.86 Mercury 2.5
- 1
Gemini 4 Argon 68.9%
- 2 Claude Sonnet 5.5 67%
- 3 Claude Opus 5.5 67%
- 4 Claude Fable 5.1 65.8%
- 5
Muse Wonder Full 64.6%
- 6 Claude Opus 5 63.7%
- 7 GPT-6 Astra 63.1%
- 8 Claude Fable 5 61.4%
- 9 GPT-6.1 Sol 61.1%
- 10
Muse Wonder 61.1%
- 11
Muse Spark 1.3 max 58.2%
- 12 GPT-5.6 Sol 58%
- 13 GPT-6 Sol 57.5%
- 14
DeepSeek V4.1 Flash 1017 56.6%
- 15 MiMo-V2.6 Pro 55.2%
- 16 Claude Opus 4.8 55.1%
- 17 Grok 4.7 55%
- 18
Gemini 3.8 Flash 54.9%
- 19 Claude Haiku 5.5 54.4%
- 20 GLM-5.3 53.5%
- 21 MiMo-V2.6 Flash 53.2%
- 22 GPT-5.6 Terra 53.1%
- 23 Grok 4.6 52.1%
- 24 Claude Sonnet 5 51.9%
- 25 GPT-5.6 Luna 51.7%
- 26
DeepSeek V4.1 Flash 51.3%
- 27
Gemini 3.7 Flash 51.3%
- 28 GPT-6 Luna 51.2%
- 29
Ember-1 50.9%
- 30 Kimi K3 50.3%
- 31
Tencent Hy4 preview 49.9%
- 32
Step 5 Preview 49.4%
- 33
Muse Spark 1.2 49.3%
- 34
Mistral Large 4 Preview 48.7%
- 35
Qwen 3.8 Max 48.3%
- 36
DeepSeek V4 Flash 0731 48%
- 37
DeepSeek V4 Pro 0813 47.6%
- 38
Muse Spark Open 46.6%
- 39
Gemini 3.5 Flash 44.8%
- 40 Grok 4.5 44.7%
- 41 GLM-5.3-Flash 44.6%
- 42
DeepSeek-V4-Pro 38.6%
- 43
MiniMax-M3 36.5%
- 44 MiMo-V2.5-Pro 33.8%
- 45
Gemini 3.1 Pro 33.4%
- 46 GPT-5.4 Mini 33.2%
- 47
Inkling 28.7%
- 48
Inkling-Small 25.5%
- 49 Mercury 2.5 8.86%
Source: Official Vals Index v2.1 leaderboard
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | | 68.9% | Sep 2026 | Official leaderboard | |
| 2 | Claude Sonnet 5.5 | 67% | Sep 2026 | Official leaderboard | |
| 3 | Claude Opus 5.5 | 67% | Sep 2026 | Official leaderboard | |
| 4 | Claude Fable 5.1 | 65.8% | Sep 2026 | Official leaderboard | |
| 5 | | 64.6% | Oct 2026 | Official leaderboard | |
| 6 | Claude Opus 5 | 63.7% | Jul 2026 | Official leaderboard | |
| 7 | GPT-6 Astra | 63.1% | Sep 2026 | Official leaderboard | |
| 8 | Claude Fable 5 | 61.4% | Jun 2026 | Official leaderboard | |
| 9 | GPT-6.1 Sol | 61.1% | Sep 2026 | Official leaderboard | |
| 10 | | 61.1% | Oct 2026 | Official leaderboard | |
| 11 | | 58.2% | max | Sep 2026 | Official leaderboard |
| 12 | GPT-5.6 Sol | 58% | Jul 2026 | Official leaderboard | |
| 13 | GPT-6 Sol | 57.5% | Sep 2026 | Official leaderboard | |
| 14 | | 56.6% | Oct 2026 | Official leaderboard | |
| 15 | MiMo-V2.6 Pro | 55.2% | Sep 2026 | Official leaderboard | |
| 16 | Claude Opus 4.8 | 55.1% | May 2026 | Official leaderboard | |
| 17 | Grok 4.7 | 55% | Sep 2026 | Official leaderboard | |
| 18 | | 54.9% | Sep 2026 | Official leaderboard | |
| 19 | Claude Haiku 5.5 | 54.4% | Oct 2026 | Official leaderboard | |
| 20 | GLM-5.3 | 53.5% | Aug 2026 | Official leaderboard | |
| 21 | MiMo-V2.6 Flash | 53.2% | Sep 2026 | Official leaderboard | |
| 22 | GPT-5.6 Terra | 53.1% | Jul 2026 | Official leaderboard | |
| 23 | Grok 4.6 | 52.1% | Aug 2026 | Official leaderboard | |
| 24 | Claude Sonnet 5 | 51.9% | Jun 2026 | Official leaderboard | |
| 25 | GPT-5.6 Luna | 51.7% | Jul 2026 | Official leaderboard | |
| 26 | | 51.3% | Sep 2026 | Official leaderboard | |
| 27 | | 51.3% | Aug 2026 | Official leaderboard | |
| 28 | GPT-6 Luna | 51.2% | Sep 2026 | Official leaderboard | |
| 29 | | 50.9% | Sep 2026 | Official leaderboard | |
| 30 | Kimi K3 | 50.3% | Jul 2026 | Official leaderboard | |
| 31 | | 49.9% | Aug 2026 | Official leaderboard | |
| 32 | | 49.4% | Sep 2026 | Official leaderboard | |
| 33 | | 49.3% | Aug 2026 | Official leaderboard | |
| 34 | | 48.7% | Oct 2026 | Official leaderboard | |
| 35 | | 48.3% | Aug 2026 | Official leaderboard | |
| 36 | | 48% | Jul 2026 | Official leaderboard | |
| 37 | | 47.6% | Aug 2026 | Official leaderboard | |
| 38 | | 46.6% | Oct 2026 | Official leaderboard | |
| 39 | | 44.8% | May 2026 | Official leaderboard | |
| 40 | Grok 4.5 | 44.7% | Jul 2026 | Official leaderboard | |
| 41 | GLM-5.3-Flash | 44.6% | Aug 2026 | Official leaderboard | |
| 42 | | 38.6% | Apr 2026 | Official leaderboard | |
| 43 | | 36.5% | Jun 2026 | Official leaderboard | |
| 44 | MiMo-V2.5-Pro | 33.8% | Apr 2026 | Official leaderboard | |
| 45 | | 33.4% | Feb 2026 | Official leaderboard | |
| 46 | GPT-5.4 Mini | 33.2% | Mar 2026 | Official leaderboard | |
| 47 | | 28.7% | Jul 2026 | Official leaderboard | |
| 48 | | 25.5% | Jul 2026 | Official leaderboard | |
| 49 | Mercury 2.5 | 8.86% | Sep 2026 | Official leaderboard |
Labs report scores for 1 model in their cards. We plot every source in the charts below.
Accuracy versus cost
The line joins the runs that no other run beats on both measures. We redrew this chart from the numbers on the official leaderboard.
| Model | Setting | Accuracy | Cost per test |
|---|---|---|---|
| | 68.9% | $15.68 | |
| Claude Sonnet 5.5 | 67% | $21.34 | |
| Claude Opus 5.5 | 67% | $32.14 | |
| Claude Fable 5.1 | 65.8% | $28.71 | |
| | 64.6% | $8.56 | |
| Claude Opus 5 | 63.7% | $19.31 | |
| GPT-6 Astra | 63.1% | $18.46 | |
| Claude Fable 5 | 61.4% | $29.59 | |
| GPT-6.1 Sol | 61.2% | $3.24 | |
| | 61.1% | $11.43 | |
| | max | 58.2% | $3.79 |
| GPT-5.6 Sol | 58% | $14.24 | |
| GPT-6 Sol | 57.5% | $7.58 | |
| | 56.6% | $0.64 | |
| MiMo-V2.6 Pro | 55.2% | $0.41 | |
| Claude Opus 4.8 | 55.1% | $13.14 | |
| Grok 4.7 | 55% | $12.11 | |
| | 54.9% | $5.71 | |
| Claude Haiku 5.5 | 54.4% | $3 | |
| GLM-5.3 | 53.5% | $7.25 | |
| MiMo-V2.6 Flash | 53.2% | $0.2 | |
| | 53.2% | $3.38 | |
| GPT-5.6 Terra | 53.1% | $5.78 | |
| Grok 4.6 | 52.1% | $4.49 | |
| Claude Sonnet 5 | 51.9% | $13.69 | |
| GPT-5.6 Luna | 51.7% | $0.82 | |
| | 51.3% | $0.33 | |
| | 51.3% | $4.67 | |
| GPT-6 Luna | 51.2% | $0.43 | |
| | 50.9% | $9.66 | |
| Kimi K3 | 50.3% | $6.44 | |
| | 49.9% | $1.44 | |
| | 49.4% | $2.63 | |
| | 49.3% | $1.94 | |
| | 48.7% | $14.07 | |
| | 48.3% | $4.96 | |
| | 48% | $0.85 | |
| | 47.6% | $3.35 | |
| | 46.6% | $4.08 | |
| | 44.8% | $3.3 | |
| Grok 4.5 | 44.7% | $2.42 | |
| GLM-5.3-Flash | 44.6% | $1.03 | |
| | 38.6% | $1.31 | |
| | 36.5% | $3.08 | |
| MiMo-V2.5-Pro | 33.8% | $0.16 | |
| | 33.4% | $2.18 | |
| GPT-5.4 Mini | 33.2% | $1.45 | |
| | 28.7% | $1.46 | |
| | 25.5% | $0.28 | |
| Mercury 2.5 | 8.9% | $0.29 |
The best score, 68.9%, costs $16 a task
Runs on the cost frontier score higher than any run that's cheaper. The costs are the leaderboard's own estimates, so compare them only within this benchmark.
Source: Official Vals Index v2.1 leaderboard
4 models have held number one on the official leaderboard since its release in September 2026
Lab claims count from the day the card came out, independent runs from the model’s release.
Source: Official Vals Index v2.1 leaderboard
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Sources: Official Vals Index v2.1 leaderboard and labs’ model cards
One lab put it in a launch post in the last six months
Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.
| Date | Launch post | Score | As the post writes it |
|---|---|---|---|
| Oct 13, 2026 | 68.9 | Vals Index |
One system card reports it
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| Oct 13, 2026 | | 68.9 | Vals Index (results table, p.5) | Capabilities |
One lab claim next to the leaderboard
Each score a lab reported for its own model, beside the same model's best score on the leaderboard. Gaps mostly come from different harnesses, effort levels and task subsets. 1 of them match, which usually means one side copied the other. Every benchmark.
| Model | Lab says | Board says | Gap |
|---|---|---|---|
| | 68.9% Vals Index | 68.9% Leaderboard | Same |
Versions
We switch the top row to each new version when it comes out. Open it for one row per version. An old version stays in play while people still test it, so whoever first takes it past 85% gets credit for closing it out.
Source: Official leaderboards
More in Economic work
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- GDPval In use Real work tasks from 44 occupations with reference files. Experts blindly compare model deliverables with expert work. Metric is win-or-tie rate.
Seed2.1 Pro 87.9%
- GDPval-AA v2.1 In use Agents with shell and web access complete 220 GDPval gold tasks from 44 occupations. Blind pairwise comparisons give Elo ratings. Claude Opus 5.5 1,846
- AA-Briefcase v1.1 In use Version 1.1 of Artificial Analysis's multi-hour office work evaluation, with Elo ratings fitted by Crowd-BT. Claude Opus 5.5 1,822
- CoWorkBench In use Agent completes long-horizon productivity tasks across computer science, finance, law and medicine. Qwen in-house scoring (method unpublished). Claude Fable 5 75.9%
- OfficeQA In use Grounded reasoning over a large corpus of U.S. Treasury Bulletin documents: locate tables and compute precise numeric answers. Claude Opus 4.7 86.3%