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

Gemini-2.5-Pro-Preview-06-05

Google

Arena Score

1433.16

License

Proprietary

95% CI

+13.78 / -16.08

Votes

2,464

DeepSeek-R1-0528

DeepSeek

Arena Score

1408.84

License

MIT

95% CI

+16.75 / -15.04

Votes

1,708

Claude Opus 4 (20250514)

Anthropic

Arena Score

1405.51

License

Proprietary

95% CI

+12.56 / -12.44

Votes

3,622

Claude Sonnet 4 (20250514)

Anthropic

Arena Score

1381.76

License

Proprietary

95% CI

+17.04 / -18.98

Votes

2,636

Claude 3.7 Sonnet (20250219)

Anthropic

Arena Score

1357.03

License

Proprietary

95% CI

+10.78 / -9.24

Votes

7,481

Gemini-2.5-Flash-Preview-05-20

Google

Arena Score

1304.86

License

Proprietary

95% CI

+11.06 / -12.70

Votes

3,084

GPT-4.1-2025-04-14

OpenAI

Arena Score

1256.52

License

Proprietary

95% CI

+6.94 / -8.34

Votes

5,770

Claude 3.5 Sonnet (20241022)

Anthropic

Arena Score

1237.67

License

Proprietary

95% CI

+4.49 / -4.79

Votes

26,338

DeepSeek-V3-0324

DeepSeek

Arena Score

1206.74

License

MIT

95% CI

+20.70 / -18.30

Votes

1,097

DeepSeek-R1

DeepSeek

Arena Score

1198.32

License

MIT

95% CI

+8.45 / -10.08

Votes

3,769

o3-2025-04-16

OpenAI

Arena Score

1189.94

License

Proprietary

95% CI

+8.98 / -7.83

Votes

4,954

GPT-4.1-mini-2025-04-14

OpenAI

Arena Score

1189.12

License

Proprietary

95% CI

+10.12 / -11.23

Votes

3,886

Qwen3-235B-A22B

Alibaba

Arena Score

1186.82

License

Apache 2.0

95% CI

+13.29 / -11.79

Votes

2,953

Mistral Medium 3

Mistral

#11

Arena Score

1174.50

License

Proprietary

95% CI

+12.92 / -14.76

Votes

2,542

Gemini-2.5-Flash-Preview-04-17

Google

#14

Arena Score

1156.94

License

Proprietary

95% CI

+9.17 / -8.69

Votes

5,242

early-grok-3

xAI

#15

Arena Score

1142.85

License

Proprietary

95% CI

+7.48 / -8.48

Votes

6,284

o3-mini-high (20250131)

OpenAI

#16

Arena Score

1136.37

License

Proprietary

95% CI

+11.69 / -8.97

Votes

2,984

Claude 3.5 Haiku (20241022)

Anthropic

#16

Arena Score

1133.19

License

Proprietary

95% CI

+4.74 / -4.09

Votes

22,128

o4-mini-2025-04-16

OpenAI

#19

Arena Score

1102.28

License

Proprietary

95% CI

+9.36 / -11.83

Votes

3,390

o3-mini (20250131)

OpenAI

#19

Arena Score

1091.78

License

Proprietary

95% CI

+8.97 / -8.66

Votes

6,391

Gemini-2.0-Pro-Exp-02-05

Google

#19

Arena Score

1088.91

License

Proprietary

95% CI

+7.04 / -7.32

Votes

11,936

o1 (20241217)

OpenAI

#22

Arena Score

1044.96

License

Proprietary

95% CI

+7.35 / -5.17

Votes

9,271

o1-mini (20240912)

OpenAI

#22

Arena Score

1041.86

License

Proprietary

95% CI

+6.20 / -6.11

Votes

13,828

Gemini-2.0-Flash-001

Google

#22

Arena Score

1039.97

License

Proprietary

95% CI

+7.22 / -5.39

Votes

10,533

Gemini-2.0-Flash-Thinking-01-21

Google

#22

Arena Score

1029.61

License

Proprietary

95% CI

+21.11 / -24.34

Votes

1,064

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

Meta

#34

Arena Score

809.75

License

Llama 3.1

95% CI

+16.38 / -19.01

Votes

1,117

Rank (UB)	Model	Arena Score	95% CI	Votes	Organization	License
1	Gemini-2.5-Pro-Preview-06-05	1433.16	+13.78 / -16.08	2,464	Google	Proprietary
1	DeepSeek-R1-0528	1408.84	+16.75 / -15.04	1,708	DeepSeek	MIT
1	Claude Opus 4 (20250514)	1405.51	+12.56 / -12.44	3,622	Anthropic	Proprietary
2	Claude Sonnet 4 (20250514)	1381.76	+17.04 / -18.98	2,636	Anthropic	Proprietary
4	Claude 3.7 Sonnet (20250219)	1357.03	+10.78 / -9.24	7,481	Anthropic	Proprietary
6	Gemini-2.5-Flash-Preview-05-20	1304.86	+11.06 / -12.70	3,084	Google	Proprietary
7	GPT-4.1-2025-04-14	1256.52	+6.94 / -8.34	5,770	OpenAI	Proprietary
8	Claude 3.5 Sonnet (20241022)	1237.67	+4.49 / -4.79	26,338	Anthropic	Proprietary
9	DeepSeek-V3-0324	1206.74	+20.70 / -18.30	1,097	DeepSeek	MIT
9	DeepSeek-R1	1198.32	+8.45 / -10.08	3,769	DeepSeek	MIT
9	o3-2025-04-16	1189.94	+8.98 / -7.83	4,954	OpenAI	Proprietary
9	GPT-4.1-mini-2025-04-14	1189.12	+10.12 / -11.23	3,886	OpenAI	Proprietary
9	Qwen3-235B-A22B	1186.82	+13.29 / -11.79	2,953	Alibaba	Apache 2.0
11	Mistral Medium 3	1174.50	+12.92 / -14.76	2,542	Mistral	Proprietary
14	Gemini-2.5-Flash-Preview-04-17	1156.94	+9.17 / -8.69	5,242	Google	Proprietary
15	early-grok-3	1142.85	+7.48 / -8.48	6,284	xAI	Proprietary
16	o3-mini-high (20250131)	1136.37	+11.69 / -8.97	2,984	OpenAI	Proprietary
16	Claude 3.5 Haiku (20241022)	1133.19	+4.74 / -4.09	22,128	Anthropic	Proprietary
19	o4-mini-2025-04-16	1102.28	+9.36 / -11.83	3,390	OpenAI	Proprietary
19	o3-mini (20250131)	1091.78	+8.97 / -8.66	6,391	OpenAI	Proprietary
19	Gemini-2.0-Pro-Exp-02-05	1088.91	+7.04 / -7.32	11,936	Google	Proprietary
22	o1 (20241217)	1044.96	+7.35 / -5.17	9,271	OpenAI	Proprietary
22	o1-mini (20240912)	1041.86	+6.20 / -6.11	13,828	OpenAI	Proprietary
22	Gemini-2.0-Flash-001	1039.97	+7.22 / -5.39	10,533	Google	Proprietary
22	Gemini-2.0-Flash-Thinking-01-21	1029.61	+21.11 / -24.34	1,064	Google	Proprietary
24	Llama-4-Maverick-17B-128E-Instruct	1027.32	+7.91 / -8.54	5,483	Meta	Llama 4
27	Gemini-2.0-Flash-Exp	980.35	+6.50 / -5.73	14,485	Google	Proprietary
27	Qwen2.5-Max	975.06	+6.06 / -6.16	11,110	Alibaba	Proprietary
28	GPT-4o-2024-11-20	964.00	+5.12 / -4.41	18,637	OpenAI	Proprietary
29	DeepSeek-V3	959.85	+8.29 / -8.00	7,717	DeepSeek	DeepSeek
31	Qwen2.5-Coder-32B-Instruct	902.25	+6.53 / -5.43	16,252	Alibaba	Apache 2.0
31	Llama-4-Scout-17B-16E-Instruct	900.24	+29.66 / -29.17	692	Meta	Llama 4
31	Gemini-1.5-Pro-002	892.55	+5.82 / -7.05	15,201	Google	Proprietary
34	Llama-3.1-405B-Instruct	809.75	+16.38 / -19.01	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