BenchmarkActivecategory · codingfamily · swe-bench · variant Lite

SWE-bench Lite

swebench.com

resolve real GitHub issues (300-instance subset)

data quality57

Updated 5 h ago · first seen 11 Sept 2026

Metric: resolved · % ↑
Current results: 78
Models: 26
Current leader: Qwen3 Coder 30B A3B Instruct 49.7%

Filters

Comparability group

Trust level

Views

Frontier over time · resolved · board=Lite · system=EntroPO + R2E

1 leader change recorded, all dated 1 Sept 2025 — the frontier line needs at least two distinct dates. The corpus is young: every result was first observed on the same day, so leader changes will separate in time as sources are re-crawled.

49.7%Qwen3 Coder 30B A3B Instruct Qwen Official board1 Sept 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 1 models · trust official-benchmark

Select models with +, then Compare.

Leaderboard
#	Model	Score	Trust	Configuration	vs leader	Evaluated	Source	Actions
1	Qwen3 Coder 30B A3B InstructOpen weightsQwen · Qwen3 · best of 2 rows	49.7%	Official board	group defaults	leader	1 Sept 2025	swebench.comT2	History

1 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 5 h agomedium
Variant: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 5 h agomedium
Harness: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 5 h agomedium
Comparability note: Source:AI Atlas curated registry (YAML, versioned in git, every entry carries its source URL)T2observed 5 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=Lite · system=EntroPO + R2E

1 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 Lite

slug swe-bench-lite · bench_01M293SPG45DHPX5C1HZD84RJY

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.