WebDev Arena Leaderboard

WebDev Arena is a real-time AI coding competition where models go head-to-head in web development challenges, developed by LMArena

Leaderboard

GPT-5 (high)

OpenAI

Arena Score

1472.37

License

Proprietary

95% CI

+8.18 / -6.69

Votes

8,142

Claude Opus 4.1 thinking-16k (20250805)

Anthropic

Arena Score

1456.34

License

Proprietary

95% CI

+6.95 / -6.06

Votes

9,559

Claude Opus 4.1 (20250805)

Anthropic

Arena Score

1450.50

License

Proprietary

95% CI

+6.68 / -7.13

Votes

9,752

Claude Sonnet 4.5 (thinking 32k)

Anthropic

Arena Score

1420.01

License

Proprietary

95% CI

+9.22 / -9.44

Votes

5,717

Gemini-2.5-Pro

Google

Arena Score

1398.72

License

Proprietary

95% CI

+6.26 / -5.61

Votes

15,501

MiniMax-M2

MiniMax

Arena Score

1398.35

License

MIT

95% CI

+10.82 / -9.15

Votes

4,346

GLM-4.6

ZAI

Arena Score

1394.39

License

MIT

95% CI

+7.81 / -6.77

Votes

7,566

DeepSeek-R1-0528

DeepSeek

Arena Score

1392.62

License

MIT

95% CI

+12.47 / -10.29

Votes

4,800

Claude Sonnet 4.5

Anthropic

Arena Score

1384.60

License

Proprietary

95% CI

+9.49 / -6.96

Votes

8,681

Claude Opus 4 (20250514)

Anthropic

Arena Score

1382.60

License

Proprietary

95% CI

+6.45 / -7.88

Votes

9,238

GLM-4.5

ZAI

Arena Score

1378.10

License

MIT

95% CI

+9.59 / -9.01

Votes

4,360

GLM-4.5-Air

ZAI

Arena Score

1365.57

License

MIT

95% CI

+16.63 / -15.52

Votes

1,425

DeepSeek-V3.1-thinking

DeepSeek

#10

Arena Score

1359.84

License

DeepSeek

95% CI

+17.56 / -14.50

Votes

1,459

Qwen3-Coder

Alibaba

#11

Arena Score

1365.31

License

Apache 2.0

95% CI

+6.47 / -6.48

Votes

14,098

Claude Sonnet 4 (20250514)

Anthropic

#11

Arena Score

1361.80

License

Proprietary

95% CI

+7.34 / -4.79

Votes

11,526

Claude 3.7 Sonnet (20250219)

Anthropic

#12

Arena Score

1358.40

License

Proprietary

95% CI

+10.31 / -8.34

Votes

7,460

Claude Haiku 4.5 (20251001)

Anthropic

#12

Arena Score

1353.72

License

Proprietary

95% CI

+9.00 / -7.62

Votes

7,402

Qwen3-235B-A22B-Instruct-2507

Alibaba

#12

Arena Score

1351.83

License

Apache 2.0

95% CI

+14.74 / -21.31

Votes

992

DeepSeek-V3.1

DeepSeek

#14

Arena Score

1338.02

License

DeepSeek

95% CI

+16.03 / -14.30

Votes

1,304

qwen3-coder-plus-2025-09-23

Alibaba

#18

Arena Score

1333.36

License

Proprietary

95% CI

+9.65 / -9.41

Votes

3,977

Cogito v2.1

Deep Cogito

#18

Arena Score

1315.32

License

MIT

95% CI

+18.91 / -13.97

Votes

1,302

Kimi-K2-Instruct

Moonshot

#21

Arena Score

1315.08

License

Modified MIT

95% CI

+8.53 / -6.77

Votes

7,027

Gemini-2.5-Flash

Google

#23

Arena Score

1294.98

License

Proprietary

95% CI

+4.67 / -6.04

Votes

15,809

GPT-4.1-2025-04-14

OpenAI

#24

Arena Score

1252.49

License

Proprietary

95% CI

+5.39 / -4.71

Votes

11,506

Claude 3.5 Sonnet (20241022)

Anthropic

#25

Arena Score

1238.15

License

Proprietary

95% CI

+7.88 / -6.13

Votes

26,267

DeepSeek-V3-0324

DeepSeek

#26

Arena Score

1207.92

License

MIT

95% CI

+19.41 / -21.74

Votes

1,094

DeepSeek-R1

DeepSeek

#26

Arena Score

1199.36

License

MIT

95% CI

+9.67 / -12.20

Votes

3,755

GPT-4.1-mini-2025-04-14

OpenAI

#26

Arena Score

1192.72

License

Proprietary

95% CI

+7.20 / -5.19

Votes

9,064

Qwen3-235B-A22B

Alibaba

#26

Arena Score

1189.50

License

Apache 2.0

95% CI

+7.79 / -7.16

Votes

5,600

o3-2025-04-16

OpenAI

#26

Arena Score

1186.42

License

Proprietary

95% CI

+6.07 / -8.33

Votes

5,572

Mistral Medium 3

Mistral

#26

Arena Score

1180.56

License

Proprietary

95% CI

+9.24 / -7.79

Votes

7,511

Grok-4-0709

xAI

#30

Arena Score

1173.70

License

Proprietary

95% CI

+7.34 / -9.40

Votes

7,685

grok-code-fast-1

xAI

#33

Arena Score

1151.73

License

Proprietary

95% CI

+10.25 / -8.45

Votes

4,991

Grok-3-preview-02-24

xAI

#33

Arena Score

1143.43

License

Proprietary

95% CI

+8.79 / -7.86

Votes

5,764

o3-mini-high (20250131)

OpenAI

#33

Arena Score

1136.74

License

Proprietary

95% CI

+10.17 / -15.73

Votes

2,979

Claude 3.5 Haiku (20241022)

Anthropic

#34

Arena Score

1133.42

License

Proprietary

95% CI

+6.53 / -5.14

Votes

22,213

MiniMax-M1

MiniMax

#34

Arena Score

1129.41

License

MIT

95% CI

+11.81 / -7.72

Votes

3,361

o4-mini-2025-04-16

OpenAI

#36

Arena Score

1117.42

License

Proprietary

95% CI

+6.05 / -8.61

Votes

8,850

gpt-oss-120b

OpenAI

#38

Arena Score

1092.96

License

Apache 2.0

95% CI

+25.67 / -30.08

Votes

759

o3-mini (20250131)

OpenAI

#39

Arena Score

1092.17

License

Proprietary

95% CI

+10.09 / -9.00

Votes

6,369

Gemini-2.0-Pro-Exp-02-05

Google

#39

Arena Score

1089.74

License

Proprietary

95% CI

+8.97 / -9.18

Votes

11,859

o1 (20241217)

OpenAI

#42

Arena Score

1045.17

License

Proprietary

95% CI

+9.42 / -8.64

Votes

9,235

o1-mini (20240912)

OpenAI

#42

Arena Score

1042.58

License

Proprietary

95% CI

+9.73 / -7.16

Votes

13,688

Gemini-2.0-Flash-001

Google

#42

Arena Score

1040.25

License

Proprietary

95% CI

+6.75 / -7.52

Votes

10,498

Gemini-2.0-Flash-Thinking-01-21

Google

#42

Arena Score

1029.81

License

Proprietary

95% CI

+19.17 / -18.30

Votes

1,058

Llama-4-Maverick-17B-128E-Instruct

Meta

#54

Arena Score

809.55

License

Llama 3.1

95% CI

+18.14 / -17.09

Votes

1,117

Rank (UB)	Model	Arena Score	95% CI	Votes	Organization	License
1	GPT-5 (high)	1472.37	+8.18 / -6.69	8,142	OpenAI	Proprietary
2	Claude Opus 4.1 thinking-16k (20250805)	1456.34	+6.95 / -6.06	9,559	Anthropic	Proprietary
2	Claude Opus 4.1 (20250805)	1450.50	+6.68 / -7.13	9,752	Anthropic	Proprietary
4	Claude Sonnet 4.5 (thinking 32k)	1420.01	+9.22 / -9.44	5,717	Anthropic	Proprietary
5	Gemini-2.5-Pro	1398.72	+6.26 / -5.61	15,501	Google	Proprietary
5	MiniMax-M2	1398.35	+10.82 / -9.15	4,346	MiniMax	MIT
5	GLM-4.6	1394.39	+7.81 / -6.77	7,566	ZAI	MIT
5	DeepSeek-R1-0528	1392.62	+12.47 / -10.29	4,800	DeepSeek	MIT
5	Claude Sonnet 4.5	1384.60	+9.49 / -6.96	8,681	Anthropic	Proprietary
7	Claude Opus 4 (20250514)	1382.60	+6.45 / -7.88	9,238	Anthropic	Proprietary
7	GLM-4.5	1378.10	+9.59 / -9.01	4,360	ZAI	MIT
9	GLM-4.5-Air	1365.57	+16.63 / -15.52	1,425	ZAI	MIT
10	DeepSeek-V3.1-thinking	1359.84	+17.56 / -14.50	1,459	DeepSeek	DeepSeek
11	Qwen3-Coder	1365.31	+6.47 / -6.48	14,098	Alibaba	Apache 2.0
11	Claude Sonnet 4 (20250514)	1361.80	+7.34 / -4.79	11,526	Anthropic	Proprietary
12	Claude 3.7 Sonnet (20250219)	1358.40	+10.31 / -8.34	7,460	Anthropic	Proprietary
12	Claude Haiku 4.5 (20251001)	1353.72	+9.00 / -7.62	7,402	Anthropic	Proprietary
12	Qwen3-235B-A22B-Instruct-2507	1351.83	+14.74 / -21.31	992	Alibaba	Apache 2.0
14	DeepSeek-V3.1	1338.02	+16.03 / -14.30	1,304	DeepSeek	DeepSeek
18	qwen3-coder-plus-2025-09-23	1333.36	+9.65 / -9.41	3,977	Alibaba	Proprietary
18	Cogito v2.1	1315.32	+18.91 / -13.97	1,302	Deep Cogito	MIT
21	Kimi-K2-Instruct	1315.08	+8.53 / -6.77	7,027	Moonshot	Modified MIT
23	Gemini-2.5-Flash	1294.98	+4.67 / -6.04	15,809	Google	Proprietary
24	GPT-4.1-2025-04-14	1252.49	+5.39 / -4.71	11,506	OpenAI	Proprietary
25	Claude 3.5 Sonnet (20241022)	1238.15	+7.88 / -6.13	26,267	Anthropic	Proprietary
26	DeepSeek-V3-0324	1207.92	+19.41 / -21.74	1,094	DeepSeek	MIT
26	DeepSeek-R1	1199.36	+9.67 / -12.20	3,755	DeepSeek	MIT
26	GPT-4.1-mini-2025-04-14	1192.72	+7.20 / -5.19	9,064	OpenAI	Proprietary
26	Qwen3-235B-A22B	1189.50	+7.79 / -7.16	5,600	Alibaba	Apache 2.0
26	o3-2025-04-16	1186.42	+6.07 / -8.33	5,572	OpenAI	Proprietary
26	Mistral Medium 3	1180.56	+9.24 / -7.79	7,511	Mistral	Proprietary
30	Grok-4-0709	1173.70	+7.34 / -9.40	7,685	xAI	Proprietary
33	grok-code-fast-1	1151.73	+10.25 / -8.45	4,991	xAI	Proprietary
33	Grok-3-preview-02-24	1143.43	+8.79 / -7.86	5,764	xAI	Proprietary
33	o3-mini-high (20250131)	1136.74	+10.17 / -15.73	2,979	OpenAI	Proprietary
34	Claude 3.5 Haiku (20241022)	1133.42	+6.53 / -5.14	22,213	Anthropic	Proprietary
34	MiniMax-M1	1129.41	+11.81 / -7.72	3,361	MiniMax	MIT
36	o4-mini-2025-04-16	1117.42	+6.05 / -8.61	8,850	OpenAI	Proprietary
38	gpt-oss-120b	1092.96	+25.67 / -30.08	759	OpenAI	Apache 2.0
39	o3-mini (20250131)	1092.17	+10.09 / -9.00	6,369	OpenAI	Proprietary
39	Gemini-2.0-Pro-Exp-02-05	1089.74	+8.97 / -9.18	11,859	Google	Proprietary
42	o1 (20241217)	1045.17	+9.42 / -8.64	9,235	OpenAI	Proprietary
42	o1-mini (20240912)	1042.58	+9.73 / -7.16	13,688	OpenAI	Proprietary
42	Gemini-2.0-Flash-001	1040.25	+6.75 / -7.52	10,498	Google	Proprietary
42	Gemini-2.0-Flash-Thinking-01-21	1029.81	+19.17 / -18.30	1,058	Google	Proprietary
44	Llama-4-Maverick-17B-128E-Instruct	1027.07	+7.32 / -8.93	5,474	Meta	Llama 4
47	Gemini-2.0-Flash-Exp	980.08	+6.80 / -6.08	14,454	Google	Proprietary
47	Qwen2.5-Max	975.51	+6.43 / -7.27	11,073	Alibaba	Proprietary
48	GPT-4o-2024-11-20	964.00	+6.94 / -6.29	18,601	OpenAI	Proprietary
48	DeepSeek-V3	959.79	+10.43 / -8.38	7,699	DeepSeek	DeepSeek
51	Qwen2.5-Coder-32B-Instruct	901.97	+7.04 / -6.64	16,199	Alibaba	Apache 2.0
51	Llama-4-Scout-17B-16E-Instruct	901.18	+22.13 / -24.77	687	Meta	Llama 4
51	Gemini-1.5-Pro-002	892.56	+7.10 / -6.40	15,159	Google	Proprietary
54	Llama-3.1-405B-Instruct	809.55	+18.14 / -17.09	1,117	Meta	Llama 3.1

More Statistics for WebDev Arena (Overall)

Confidence Interval for Model Strength

Figure 1

Average Win Rate Against All Other Models (Assuming Uniform Sampling and No Ties)

Figure 2

Fraction of Model A Wins for All Non-tied A vs. B Battles

Figure 3

Battle Count for Each Combination of Models (without Ties)

Figure 4