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LMArena WebDev: from an image leaderboard

Claude Opus 5.5 leads
1753
models measured
49
lead over #2
+15 Elo
median
1550

Leader on LMArena WebDev: from an image · read October 21

lmarena_webdev_from_an_image.py


        # LMArena WebDev: from an image, read October 21
        leaders = {
            "Claude Opus 5.5": 1753,    "Claude Sonnet 5.5": 1737,    "GPT-6 Astra": 1726,
        }
      

On October 21, 2026, 49 of our catalog's models had a LMArena WebDev: from an image result, and Anthropic Claude Opus 5.5 led with 1753, ahead of Anthropic Claude Sonnet 5.5 at 1737.

Web pages built to match an image. People ask a question, compare two anonymous answers and vote for the better one; the rating is built from those votes, as LMArena publishes it.

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

LMArena WebDev: from an image results for models in the catalog
# Model Result VotesInterval (±) Evidence Coding index Output $/Mtok
1 Claude Opus 5.5Anthropic 1753 781±24.0 88.8 $20.00
2 Claude Sonnet 5.5Anthropic 1737 1,551±16.8 87.3 $10.00
3 GPT-6 AstraOpenAI 1726 3,181±12.4 85.1 $50.00
4 Claude Fable 5.1Anthropic 1722 2,907±12.7 84.2 $50.00
5 GPT-6.1 SolOpenAI 1702 1,916±15.1 82.4 $10.00
6 Claude Opus 5Anthropic 1662 4,671±9.8 83.0 $25.00
7 GPT-6 SolOpenAI 1660 2,948±12.0 76.0 $10.00
8 Muse Spark 1.3Meta 1640 5,679±9.1 57.4 $4.25
9 Qwen3.8 Max (0902)Qwen 1637 1,163±18.3 62.4 $6.00
10 Claude Fable 5Anthropic 1623 5,855±8.9 79.3 $50.00
11 GPT-5.6 SolOpenAI 1609 4,969±9.3 73.5 $20.00
12 DeepSeek V4.1 FlashDeepSeek 1606 767±22.2 62.5 $0.78
13 Grok 4.6xAI 1603 3,241±11.1 65.7 $6.00
14 Gemini 3.7 FlashGoogle 1599 2,661±12.2 58.0 $3.75
15 MiMo-V2.6-ProXiaomi 1598 2,627±12.3 65.4 $0.87
16 MiMo-V2.6-FlashXiaomi 1596 2,318±12.9 54.7 $0.28
17 Gemini 3.8 FlashGoogle 1593 2,516±12.6 61.6 $3.75
18 Grok 4.7xAI 1586 1,191±17.4 66.7 $6.00
19 Kimi K3Moonshot AI 1579 3,936±10.3 62.3 $15.00
20 GLM 5.3 FlashZ.ai 1578 5,623±9.1 57.7 $0.50
21 Claude Opus 4.7Anthropic 1577 6,946±9.1 67.5 $25.00
22 Qwen3.8 27BQwen 1577 6,418±8.5 74.2 $2.55
23 GPT-6 LunaOpenAI 1571 4,439±9.9 57.3 $0.50
24 Grok 4.5xAI 1562 4,255±9.8 58.6 $6.00
25 Step 5 PreviewStepFun 1550 3,300±11.6 61.1 $2.70
26 Gemini 3.6 FlashGoogle 1545 1,797±14.3 62.5 $3.75
27 Claude Opus 4.6Anthropic 1543 7,938±8.9 57.2 $25.00
28 GPT-5.6 TerraOpenAI 1541 4,814±9.4 63.9 $12.00
29 Claude Sonnet 5Anthropic 1540 8,124±7.6 57.7 $10.00
30 Muse Spark 1.1Meta 1540 3,120±11.3 70.3 $4.25
31 GPT-5.5OpenAI 1532 6,795±9.2 71.3 $30.00
32 Claude Sonnet 4.6Anthropic 1529 8,312±8.8 57.3 $15.00
33 Kimi K2.6Moonshot AI 1521 3,591±11.4 52.1 $4.00
34 GPT-5.6 LunaOpenAI 1517 4,324±9.8 58.0 $1.20
35 Kimi K2.7 CodeMoonshot AI 1513 921±20.2 53.4 $4.00
36 Gemini 3.5 FlashGoogle 1504 2,865±11.7 39.8 $9.00
37 Gemini 3.1 Pro PreviewGoogle 1481 8,219±8.7 32.3 $12.00
38 Qwen3.6 PlusQwen 1472 5,847±10.4 44.1 $1.95
39 MiniMax M3MiniMax 1470 5,983±8.5 39.2 $1.20
40 Gemini 3.5 Flash LiteGoogle 1448 1,603±15.3 49.0 $2.50
41 GPT-5.3-CodexOpenAI 1443 2,671±14.1 60.0 $14.00
42 Kimi K2.5Moonshot AI 1439 1,653±17.3 38.6 $2.85
43 GPT-5.4OpenAI 1436 3,201±11.7 64.4 $15.00
44 GLM 5V TurboZ.ai 1425 1,560±16.0 Not benchmarked $4.00
45 GPT-5.1OpenAI 1421 1,000±21.7 40.4 $10.00
46 T Inkling SmallThinking Machines 1410 1,025±19.2 27.3 $1.20
47 Grok 4.3xAI 1375 5,868±9.7 37.4 $2.50
48 Gemini 3.1 Flash Lite PreviewGoogle 1336 6,518±10.9 22.7 $1.50
49 Gemini 2.5 ProGoogle 1285 1,053±21.2 19.1 $10.00

Only models in our catalog are listed, and each appears once with its best published run. 184 rows were read from the source on October 21, 2026, and rows that match no catalog model are left out. Every other column is a figure the board publishes for the same run.