Benchmark Almanac

GDPevo

Claude Opus 4.8 67.1% leads since August 2026
Not in model cards

Agents learn from training tasks drawn from enterprise workflows and must reuse that experience on related test tasks. Gains at test time measure self-evolution.

An automated pipeline generates the tasks by rule hybridization to limit contamination. 22 HF paper upvotes.

Made by
Prism Shadow
Released
August 2026
Kind
Running a business
Level
Expert
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
GPT-5.5 #20 on the capability index
Last model added
June 2026
Scores refreshed
November 12th, 2026

In the authors’ words

Agent self-evolution updates an agent's persistent state from prior experience and reuses it to solve related tasks more effectively. Evaluating self-evolution is difficult: existing benchmarks provide limited coverage of economically valuable task domains, do not always design training and test tasks such that test-time gains can be attributed to training experience, and remain vulnerable to data contamination. We present GDPevo, an evolution-native benchmark grounded in GDP-related enterprise workflows, together with the fully automated data pipeline that generates it. Its core mechanism, rule hybridization, decomposes each enterprise workflow into atomic business rules, distributes subsets of these rules across training tasks, and recombines them in held-out test tasks so that test-time gains are attributable. GDPevo spans CRM, ERP, finance, healthcare, legal, and data-centric workflows. Its V1 release contains 120 tasks in 12 groups, with five training and five held-out test tasks per group. Full automation enables the pipeline to expand the suite to 240 tasks in 24 groups (V2) within two days, providing a practical response to contamination. Using GDPevo, we evaluate four agents, each comprising a harness and a model, under four supervision types. Self-evolution consistently improves held-out accuracy by up to 16.44 percentage points. But the best evolved agents remain far below the fully informed oracle ceiling of 91.6%, indicating that the self-evolution ability of current agents remains far from fully realized. We publicly release the pipeline, benchmark, and full evaluation results at https://github.com/Prism-Shadow/GDPevo.

Abstract of GDPevo: Evaluating Agent Self-Evolution on Real Business Tasks (arXiv:2608.03764, CC0)
4
Models scored on its own leaderboard

Claude Opus 4.8 leads with 67.1% among models released by June 2026

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.

The newest model with a score here came out in June 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Claude Opus 4.8 xhigh; fewshot 67.1%
  2. 2 GPT-5.5 xhigh; fewshot 64.5%
  3. 3 GLM-5.2 max; fewshot 60.1%
  4. 4 DeepSeek-V4-Pro max; fewshot 48.8%

Source: Official GDPevo leaderboard

#ModelScoreSettingDateSource
1 Claude Opus 4.8 67.1% xhigh; fewshot, Claude Code May 2026 Official leaderboard
2 GPT-5.5 64.5% xhigh; fewshot, Codex Apr 2026 Official leaderboard
3 GLM-5.2 60.1% max; fewshot, Claude Code Jun 2026 Official leaderboard
4 DeepSeek-V4-Pro 48.8% max; fewshot, Claude Code Apr 2026 Official leaderboard

More effort adds a median 15 points

Models the leaderboard ran at two or more effort levels. We don’t have enough cost data here to say what the extra effort costs.

Lowest effort to highest, light to dark
Claude Opus 4.8 Claude Code
xhigh; base xhigh; self xhigh; refl… xhigh; fews…
67.1%
GPT-5.5 Codex
xhigh; base xhigh; self xhigh; fews…
64.5%
GLM-5.2 Claude Code
max; base max; self max; reflec… max; fewshot
60.1%
DeepSeek-V4-Pro Claude Code
max; base max; self max; fewshot
48.8%

Source: Official GDPevo leaderboard

ModelEffortHarnessScoreCost per taskOutput tokens
Claude Opus 4.8 xhigh; fewshot Claude Code 67.1%
GPT-5.5 xhigh; fewshot Codex 64.5%
GLM-5.2 max; fewshot Claude Code 60.1%
Claude Opus 4.8 xhigh; reflect-3 Claude Code 59.3%
GPT-5.5 xhigh; reflect-3 Codex 57.8%
GPT-5.5 xhigh; self Codex 55.8%
GLM-5.2 max; reflect-3 Claude Code 55.5%
Claude Opus 4.8 xhigh; self Claude Code 55%
GLM-5.2 max; self Claude Code 51%
Claude Opus 4.8 xhigh; base Claude Code 50.6%
GPT-5.5 xhigh; base Codex 49.4%
DeepSeek-V4-Pro max; fewshot Claude Code 48.8%
DeepSeek-V4-Pro max; reflect-3 Claude Code 47.1%
DeepSeek-V4-Pro max; self Claude Code 46.2%
GLM-5.2 max; base Claude Code 46.1%
DeepSeek-V4-Pro max; base Claude Code 43.6%

Number one over time

Lab claims count from the day the card came out, independent runs from the model’s release.

Anthropic
Own leaderboard Not tested since Aug 2026

Source: Official GDPevo leaderboard

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Best so far
0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) Claude Opus 4.8 0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) Claude Opus 4.8

Source: Official GDPevo leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

More in Economic work

All 97 in Economic work
  • JobBench In use 130 tasks from 35 occupations workers most want delegated. Agent works through messy reference files, graded by fact-anchored binary rubrics. GLM-5.3 61.4%
  • 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%