cursor.com · benchmark source

Cursor

Cursor’s first-party agent evals for IDE-native multi-file work. CursorBench is vendor-run from real Cursor sessions — useful inside Cursor, not a public reproducible harness.

Open cursor.com3 boards on this publisher

Coding agents

CursorBench

Cursor’s offline correctness suite for ambiguous, multi-file coding-agent tasks sourced from real Cursor sessions rather than public GitHub issues.

Why it matters

It separates frontier models on IDE-style agent work where SWE-bench and similar public suites are increasingly saturated or contaminated.

Use it when

You are choosing a model for Cursor’s agent loop and want a signal aligned with Cursor’s own product evals — then validate on your repo.

The limitation

First-party and not independently reproducible from a public harness. Scores move when Cursor refreshes the problem distribution — CursorBench 4.0 (2026-09-10) is a harder task set, so never compare its scores with 3.x.

Leaderboard snapshot

CursorBench — chart and full table

Same layout as Cursor’s public board: Cost / Tokens / Steps chart, then one full Score · Cost · Tokens · Steps table.

Local leader

Opus 5.5 Max

57.8%

Rows shown

Full CursorBench 4.0 table

Snapshot date

2026-10-01

Mirrored from cursor.com/cursorbench

Unlabelled to keep the cluster readable: Grok 4.6, Composer 2.5. Hover a point for its figures, or use the table below.

Better is toward the top-right (higher score, lower cost). X-axis is reversed to match Cursor’s public chart.

CursorBench 4.0 full leaderboard with score, cost, tokens, and steps per task
#	Model	Score	Cost / task	Tokens / task	Steps / task
1	Opus 5.5 Max	57.8%	$13.43	218,363	185
2	Opus 5.5 Extra High	56.0%	$6.98	101,083	109
3	Opus 5.5 High	56.0%	$3.97	53,078	68
4	Sonnet 5.5 Max	55.5%	$9.67	271,920	170
5	Sonnet 5.5 Extra High	53.1%	$3.88	100,158	78
6	Opus 5.5 Medium	52.5%	$2.91	37,954	54
7	Fable 5.1 Max	51.8%	$17.28	117,236	128
8	Fable 5.1 Extra High	51.6%	$13.01	87,294	101
9	Fable 5.1 High	49.2%	$9.08	58,438	77
10	Sonnet 5.5 High	47.8%	$1.67	37,391	41
11	Fable 5.1 Medium	46.8%	$7.05	45,411	63
12	Opus 5 Max	46.6%	$11.95	85,384	106
13	Grok 4.7 Extra High	46.3%	$6.01	70,141	88
14	Opus 5 Extra High	46.1%	$11.43	80,094	103
15	Fable 5.1 Low	45.1%	$5.44	34,795	51
16	Opus 5 High	44.7%	$9.00	61,405	86
17	Grok 4.7 High	43.9%	$4.69	56,382	71
18	Opus 5.5 Low	43.7%	$1.17	15,811	28
19	Opus 5 Medium	43.3%	$6.94	45,272	72
20	GLM 5.3 Max	42.6%	$5.05	96,387	166
21	GPT-5.6 Sol Max	41.7%	$8.23	42,944	99
22	Grok 4.7 Medium	41.6%	$3.49	36,683	60
23	Muse Spark 1.3 Max	41.6%	$2.64	52,005	98
24	Grok 4.6 Extra High	41.4%	$6.10	49,814	56
25	GPT-5.6 Terra Max	41.3%	$5.14	60,814	107
26	Opus 5 Low	40.7%	$4.87	31,995	57
27	Grok 4.6 High	40.4%	$5.20	41,387	48
28	Gemini 3.8 Flash High	39.6%	$4.70	162,565	324
29	Sonnet 5.5 Medium	39.2%	$0.70	16,036	22
30	GLM 5.3 High	38.0%	$3.24	60,031	114
31	GPT-5.6 Sol Extra High	37.7%	$4.40	24,729	55
32	Muse Spark 1.3 Extra High	37.5%	$2.10	40,891	83
33	Gemini 3.8 Flash Medium	37.3%	$4.06	128,364	290
34	GLM 5.3 Flash Max	36.8%	$0.39	56,410	118
35	Grok 4.6 Medium	36.1%	$3.48	24,893	40
36	GPT-5.6 Luna Max	35.9%	$1.03	87,284	208
37	Sonnet 5.5 Low	35.8%	$0.50	11,668	18
38	GPT-5.6 Sol High	35.7%	$2.85	16,174	41
39	Sonnet 5 Max	34.1%	$7.17	149,257	140
40	GPT-5.6 Terra Extra High	33.6%	$1.81	23,436	43
41	Grok 4.6 Low	33.4%	$2.25	16,307	32
42	Muse Spark 1.3 High	33.4%	$1.66	30,654	69
43	GLM 5.3 Low	33.3%	$2.04	31,983	81
44	Grok 4.7 Low	33.1%	$1.58	15,677	40
45	GPT-5.6 Luna Extra High	33.0%	$0.44	40,598	98
46	Muse Spark 1.3 Medium	32.6%	$1.49	27,255	64
47	Sonnet 5 Extra High	32.0%	$4.55	83,373	102
48	GPT-5.6 Sol Medium	31.1%	$1.77	10,111	32
49	GLM 5.3 Flash High	31.1%	$0.25	35,104	84
50	Sonnet 5 High	30.8%	$3.48	61,146	85
51	GPT-5.6 Terra High	30.7%	$1.11	13,162	33
52	GPT-5.6 Luna High	29.4%	$0.25	23,368	64
53	Muse Spark 1.3 Low	29.3%	$0.93	17,483	47
54	Sonnet 5 Medium	28.0%	$2.31	39,114	65
55	Composer 2.5	27.7%	$0.68	17,347	41
56	GPT-5.6 Terra Medium	27.6%	$0.64	7,307	25
57	GLM 5.3 Flash Low	26.9%	$0.15	17,831	58
58	GPT-5.6 Terra Low	25.2%	$0.52	5,914	23
59	GPT-5.6 Sol Low	24.6%	$0.87	4,885	21
60	Muse Spark 1.3 Minimal	24.3%	$0.56	10,620	34
61	Sonnet 5 Low	24.1%	$1.39	23,772	46
62	GPT-5.6 Luna Medium	22.2%	$0.08	7,642	32
63	GPT-5.6 Luna Low	16.0%	$0.03	3,288	18

Avg cost / task applies each model’s published per-million-token pricing to tokens used on each task. This snapshot has no row-level training-data disclosure markers. Small score gaps may not be statistically meaningful — confirm on cursor.com/cursorbench.

Evidence in this catalog

Where CursorBench fits

Closest verified examples we currently carry. A missing score is not a zero.

Model examples

Opus 5.5 Max57.8%
Published source observation captured 2026-10-01. Source-specific result; no independent rerun or universal capability verdict.
Opus 5.5 Extra High56.0%
Published source observation captured 2026-10-01. Source-specific result; no independent rerun or universal capability verdict.
Opus 5.5 High56.0%
Published source observation captured 2026-10-01. Source-specific result; no independent rerun or universal capability verdict.

Harness examples

CursorIDE agent harness
CursorBench scores models inside Cursor’s agent loop, not bare API chat.

Open this board on CursorBench (live)