BenchmarkActivecategory · codingfamily · swe-bench · variant Verified

SWE-bench Verified

swebench.com

resolve real GitHub issues (500 human-validated instances)

data quality57

Updated 6 h ago · first seen 11 Sept 2026

Metric: resolved · % ↑
Current results: 158
Models: 82
Current leader: Claude Opus 4.5 79.2%

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Score history · Claude 4.5 Sonnet 3 rows

Claude 4.5 Sonnet

71.4%date=2026-02-17 · board=Verified · system=mini-SWE-agent · model_tag=claude-sonnet-4-5-2025092917 Feb 2026
74.8%date=2025-11-03 · board=Verified · system=Sonar Foundation Agent · model_tag=claude-sonnet-4-53 Nov 2025
70.6%date=2025-09-29 · board=Verified · system=mini-SWE-agent · model_tag=claude-sonnet-4-5-2025092929 Sept 2025

Back to the leaderboard

Frontier over time · resolved · board=Verified · system=Sonar Foundation Agent

79.2%Claude Opus 4.5 Anthropic Community5 Dec 2025
74.8%Claude 4.5 Sonnet Anthropic Community3 Nov 2025

Includes closed rows (history). A point is emitted whenever a result beats every earlier result of the same group, ordered by evaluated_at when the source publishes it, else observed_at.

Leaderboard 2 models

Select models with +, then Compare.

Leaderboard
#	Model	Score	Trust	Configuration	vs leader	Evaluated	Source	Actions
1	Claude Opus 4.5ClosedAnthropic · Claude	79.2%	Community	group defaults	leader	5 Dec 2025	swebench.comT2	History
2	Claude 4.5 SonnetAnthropic · Claude 4.5	74.8%	Community	group defaults	Partially comparable-4.40 pt	3 Nov 2025	swebench.comT2	History

2 results

One row per canonical model — its best current row inside this comparability group (effort variants are folded into the model). Bars are relative to the page's best score. “vs leader” reads comparability: partially comparable = same task, conditions differ (reasoning effort, temperature, judge). Rules →

Definition

Task: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 15 h agomedium
Metric: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 15 h agomedium
Metric range: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 6 h agomedium
Variant: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 6 h agomedium
Harness: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 6 h agomedium
Comparability note: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 6 h agomedium
Known limitations: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 15 h agomedium
Paper: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 15 h agomedium
Website: swebench.com
Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 15 h agomedium

Active group

resolved · board=Verified · system=Sonar Foundation Agent

2 models · 2 current rows

Comparability

Comparable same task and conditions · Partially comparable same task, conditions differ (effort, temperature, judge) · Not comparable different variant or metric

Also known as

SWE-bench, SWE-bench Verified

slug swe-bench-verified · bench_01M293SPEGA1XMKH0SMTFTCK2R

Rows are grouped by comparability group = canonical metric × config_key (hash of the task-defining configuration keys: variant, evaluator, harness, shots, pass regime…). A leaderboard shows one row per canonical model: its best current row inside the group. Reasoning effort, temperature or judge differences keep rows in the same group but mark them partially comparable. delta_rank compares with the ranking built from the closed (previous) rows of the same group.