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CursorBench 4.0 leaderboard

Claude Opus 5.5 leads
57.8%
models measured
18
lead over #2
+2.3 pts
median
44.5%

Leader on CursorBench 4.0 · read November 5

cursorbench_4_0.py


        # CursorBench 4.0, read November 5
        leaders = {
            "Claude Opus 5.5": 57.8%,    "Claude Sonnet 5.5": 55.5%,    "Gemini 4 Argon": 52.9%,
        }
      

On November 5, 2026, 18 of our catalog's models had a CursorBench 4.0 result, and Anthropic Claude Opus 5.5 led with 57.8%, ahead of Anthropic Claude Sonnet 5.5 at 55.5%.

CursorBench evaluates agents on ambiguous, multi-file tasks taken from real Cursor sessions. The number is the score Cursor publishes for each model on version 4.0; higher is better. Each model appears at several reasoning efforts, such as Max, Extra High and High.

How to read the score: We show the best effort per model.

Role in the index

A coding board we show beside the Vibe Coding Index, not inside it: the index keeps the six boards it was defined on, so a score does not move every time a board is added. Read the methodology

18 models with a result

Original board: CursorBench (Cursor)
CursorBench 4.0 results for models in the catalog
# Model Result Evidence Coding index Output $/Mtok
1 Claude Opus 5.5Anthropic 57.8% 88.9 $20.00
2 Claude Sonnet 5.5Anthropic 55.5% 87.3 $10.00
3 Gemini 4 ArgonGoogle 52.9% 81.0 $10.00
4 Claude Fable 5.1Anthropic 51.8% 84.3 $50.00
5 Muse WonderMeta 50.4% 72.0 $20.00
6 Claude Haiku 5.5Anthropic 48.4% 70.8 $0.50
7 DeepSeek V4.1 Flash 1017DeepSeek 47.7% 70.3 $0.60
8 Claude Opus 5Anthropic 46.6% 81.6 $25.00
9 Grok 4.7xAI 46.3% 66.7 $6.00
10 GLM 5.3Z.ai 42.6% 68.5 $4.40
11 GPT-5.6 SolOpenAI 41.7% 70.7 $20.00
12 Muse Spark 1.3Meta 41.6% 57.4 $4.25
13 Grok 4.6xAI 41.4% 65.7 $6.00
14 GPT-5.6 TerraOpenAI 41.3% 63.8 $12.00
15 Gemini 3.8 FlashGoogle 39.6% 61.6 $3.75
16 GLM 5.3 FlashZ.ai 36.8% 57.7 $0.50
17 GPT-5.6 LunaOpenAI 35.9% 55.3 $1.20
18 Claude Sonnet 5Anthropic 34.1% 54.7 $10.00

Only models in our catalog are listed, and each appears once with its best published run. 18 rows were read from the source on November 5, 2026, and rows that match no catalog model are left out.

Results reported by model makers

The board above is CursorBench (Cursor)'s own run. Model makers also report CursorBench 4.0 in their release announcements; those numbers are below, with the date and the announcement. They are not independent and do not count toward any index.

CursorBench 4.0 scores reported by model makers
Rank Model Score Setting Reported by Date
1 Claude Opus 5.5 57.8% Not published Anthropic May 27, 2026 (model release) · read from the maker's chart
2 Claude Sonnet 5.5 55.5% Not published Anthropic June 30, 2026 (model release)
3 Claude Fable 5.1 51.8% Not published Anthropic May 27, 2026 (model release) · read from the maker's chart
4 Claude Opus 5 46.6% Not published Anthropic May 27, 2026 (model release) · read from the maker's chart
5 Grok 4.7 46.3% xHigh xAI September 21, 2026
6 Grok 4.6 40.4% High xAI September 21, 2026
7 Claude Sonnet 5 34.1% Not published Anthropic June 30, 2026 (model release)