Codesota · Agentic AI · HCAST · HCASTTasks/Agentic AI/HCAST
HCAST · benchmark dataset · 2024 · PYTHON

Human-Calibrated Autonomy Software Tasks.

90 realistic software engineering tasks calibrated against human performance times. Tests whether agents can complete tasks that take humans 15 minutes to 4 hours. Primary metric: success rate across all tasks.

Paper Submit a result
§ 01 · Leaderboard

Best published scores.

6 results indexed across 1 metric. Shaded row marks current SOTA; ties broken by submission date.


Primary
success-rate · higher is better
success-rate· primary
6 rows
#ModelOrgSubmittedPaper / codesuccess-rate
01Claude Opus 4APIAnthropicApr 2025METR: Measuring Autonomy in AI Systems (2025 Update)55
02o3APIOpenAIApr 2025METR: Measuring Autonomy in AI Systems (2025 Update)49
03Claude 3.7 SonnetAPIAnthropicApr 2025METR: Measuring Autonomy in AI Systems (2025 Update)38
04o1APIOpenAIApr 2025METR: Measuring Autonomy in AI Systems (2025 Update)28
05Claude 3.5 SonnetAPIAnthropicApr 2025METR: Measuring Autonomy in AI Systems (2025 Update)18
06GPT-4 Turbo (2024)OpenAIDec 2023HCAST: Human-Calibrated Autonomy Software Tasks12
Fig 2 · Rows sorted by score within each metric. Shaded row marks SOTA. Dates reflect model or paper release where available, otherwise the date Codesota accessed the source.
§ 03 · Progress

2 steps
of state of the art.

Each row below marks a model that broke the previous record on success-rate. Intermediate submissions are kept in the leaderboard above; only SOTA-setting entries are re-listed here.

Higher scores win. Each subsequent entry improved upon the previous best.

SOTA line · success-rate
  1. Dec 19, 2023GPT-4 Turbo (2024)OpenAI12
  2. Apr 1, 2025Claude Opus 4Anthropic55
Fig 3 · SOTA-setting models only. 2 entries span Dec 2023 Apr 2025.
§ 04 · Literature

2 papers
tied to this benchmark.

Every paper below corresponds to at least one row in the leaderboard above. Click through for the arXiv preprint and, when available, the reference implementation.

§ 06 · Contribute

Have a score that beats
this table?

Submit a checkpoint and a reproduction script. We will run it, publish the score, and — if it takes the top — annotate the step on the progress chart with your name.

Submit a result Read submission guide
What a submission needs
  • 01A public checkpoint or API endpoint
  • 02A reproduction script with frozen commit + seed
  • 03Declared evaluation environment (Python, deps)
  • 04One row per metric declared by this dataset
  • 05A contact so we can follow up on discrepancies