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

1443.22

License

Proprietary

95% CI

+16.23 / -16.87

Votes

1,872

Claude Opus 4 (20250514)

Anthropic

Arena Score

1411.98

License

Proprietary

95% CI

+15.25 / -13.93

Votes

2,466

Gemini-2.5-Pro-Preview-05-06

Google

Arena Score

1408.20

License

Proprietary

95% CI

+14.65 / -13.74

Votes

3,858

Claude Sonnet 4 (20250514)

Anthropic

Arena Score

1389.18

License

Proprietary

95% CI

+15.21 / -14.98

Votes

2,078

Claude 3.7 Sonnet (20250219)

Anthropic

Arena Score

1357.13

License

Proprietary

95% CI

+8.68 / -7.77

Votes

7,481

Gemini-2.5-Flash-Preview-05-20

Google

Arena Score

1311.55

License

Proprietary

95% CI

+10.24 / -13.76

Votes

2,626

GPT-4.1-2025-04-14

OpenAI

Arena Score

1256.03

License

Proprietary

95% CI

+8.79 / -7.56

Votes

5,489

Claude 3.5 Sonnet (20241022)

Anthropic

Arena Score

1237.72

License

Proprietary

95% CI

+5.62 / -4.56

Votes

26,338

DeepSeek-V3-0324

DeepSeek

Arena Score

1206.73

License

MIT

95% CI

+18.65 / -16.07

Votes

1,097

DeepSeek-R1

DeepSeek

Arena Score

1198.26

License

MIT

95% CI

+9.00 / -11.30

Votes

3,769

o3-2025-04-16

OpenAI

Arena Score

1188.34

License

Proprietary

95% CI

+8.08 / -9.78

Votes

4,514

GPT-4.1-mini-2025-04-14

OpenAI

Arena Score

1186.65

License

Proprietary

95% CI

+10.53 / -9.05

Votes

3,611

Qwen3-235B-A22B

Alibaba

Arena Score

1183.37

License

Apache 2.0

95% CI

+12.80 / -13.57

Votes

2,634

Mistral Medium 3

Mistral

#11

Arena Score

1167.45

License

Proprietary

95% CI

+13.51 / -13.47

Votes

2,139

Gemini-2.5-Flash-Preview-04-17

Google

#15

Arena Score

1143.71

License

Proprietary

95% CI

+9.10 / -9.58

Votes

3,262

early-grok-3

xAI

#15

Arena Score

1142.79

License

Proprietary

95% CI

+6.89 / -7.33

Votes

6,284

o3-mini-high (20250131)

OpenAI

#15

Arena Score

1136.26

License

Proprietary

95% CI

+10.19 / -12.75

Votes

2,984

Claude 3.5 Haiku (20241022)

Anthropic

#15

Arena Score

1132.85

License

Proprietary

95% CI

+4.34 / -4.92

Votes

21,827

o4-mini-2025-04-16

OpenAI

#19

Arena Score

1099.59

License

Proprietary

95% CI

+9.89 / -13.05

Votes

3,093

o3-mini (20250131)

OpenAI

#19

Arena Score

1091.68

License

Proprietary

95% CI

+7.35 / -8.36

Votes

6,391

Gemini-2.0-Pro-Exp-02-05

Google

#19

Arena Score

1088.85

License

Proprietary

95% CI

+6.19 / -6.66

Votes

11,936

o1 (20241217)

OpenAI

#22

Arena Score

1044.86

License

Proprietary

95% CI

+6.26 / -7.73

Votes

9,271

o1-mini (20240912)

OpenAI

#22

Arena Score

1041.81

License

Proprietary

95% CI

+6.57 / -5.78

Votes

13,828

Gemini-2.0-Flash-001

Google

#22

Arena Score

1039.93

License

Proprietary

95% CI

+5.68 / -6.02

Votes

10,533

Gemini-2.0-Flash-Thinking-01-21

Google

#22

Arena Score

1029.57

License

Proprietary

95% CI

+16.88 / -17.28

Votes

1,064

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

Meta

#34

Arena Score

809.61

License

Llama 3.1

95% CI

+19.02 / -17.33

Votes

1,117

Rank (UB)	Model	Arena Score	95% CI	Votes	Organization	License
1	Gemini-2.5-Pro-Preview-06-05	1443.22	+16.23 / -16.87	1,872	Google	Proprietary
1	Claude Opus 4 (20250514)	1411.98	+15.25 / -13.93	2,466	Anthropic	Proprietary
2	Gemini-2.5-Pro-Preview-05-06	1408.20	+14.65 / -13.74	3,858	Google	Proprietary
2	Claude Sonnet 4 (20250514)	1389.18	+15.21 / -14.98	2,078	Anthropic	Proprietary
5	Claude 3.7 Sonnet (20250219)	1357.13	+8.68 / -7.77	7,481	Anthropic	Proprietary
6	Gemini-2.5-Flash-Preview-05-20	1311.55	+10.24 / -13.76	2,626	Google	Proprietary
7	GPT-4.1-2025-04-14	1256.03	+8.79 / -7.56	5,489	OpenAI	Proprietary
8	Claude 3.5 Sonnet (20241022)	1237.72	+5.62 / -4.56	26,338	Anthropic	Proprietary
9	DeepSeek-V3-0324	1206.73	+18.65 / -16.07	1,097	DeepSeek	MIT
9	DeepSeek-R1	1198.26	+9.00 / -11.30	3,769	DeepSeek	MIT
9	o3-2025-04-16	1188.34	+8.08 / -9.78	4,514	OpenAI	Proprietary
9	GPT-4.1-mini-2025-04-14	1186.65	+10.53 / -9.05	3,611	OpenAI	Proprietary
9	Qwen3-235B-A22B	1183.37	+12.80 / -13.57	2,634	Alibaba	Apache 2.0
11	Mistral Medium 3	1167.45	+13.51 / -13.47	2,139	Mistral	Proprietary
15	Gemini-2.5-Flash-Preview-04-17	1143.71	+9.10 / -9.58	3,262	Google	Proprietary
15	early-grok-3	1142.79	+6.89 / -7.33	6,284	xAI	Proprietary
15	o3-mini-high (20250131)	1136.26	+10.19 / -12.75	2,984	OpenAI	Proprietary
15	Claude 3.5 Haiku (20241022)	1132.85	+4.34 / -4.92	21,827	Anthropic	Proprietary
19	o4-mini-2025-04-16	1099.59	+9.89 / -13.05	3,093	OpenAI	Proprietary
19	o3-mini (20250131)	1091.68	+7.35 / -8.36	6,391	OpenAI	Proprietary
19	Gemini-2.0-Pro-Exp-02-05	1088.85	+6.19 / -6.66	11,936	Google	Proprietary
22	o1 (20241217)	1044.86	+6.26 / -7.73	9,271	OpenAI	Proprietary
22	o1-mini (20240912)	1041.81	+6.57 / -5.78	13,828	OpenAI	Proprietary
22	Gemini-2.0-Flash-001	1039.93	+5.68 / -6.02	10,533	Google	Proprietary
22	Gemini-2.0-Flash-Thinking-01-21	1029.57	+16.88 / -17.28	1,064	Google	Proprietary
24	Llama-4-Maverick-17B-128E-Instruct	1026.37	+8.46 / -8.46	5,363	Meta	Llama 4
27	Gemini-2.0-Flash-Exp	980.20	+4.78 / -6.32	14,485	Google	Proprietary
27	Qwen2.5-Max	974.98	+4.90 / -6.62	11,110	Alibaba	Proprietary
28	GPT-4o-2024-11-20	964.00	+4.67 / -5.17	18,637	OpenAI	Proprietary
29	DeepSeek-V3	959.75	+6.58 / -7.33	7,717	DeepSeek	DeepSeek
31	Qwen2.5-Coder-32B-Instruct	902.25	+4.26 / -6.21	16,252	Alibaba	Apache 2.0
31	Llama-4-Scout-17B-16E-Instruct	900.16	+26.71 / -25.64	692	Meta	Llama 4
31	Gemini-1.5-Pro-002	892.47	+5.86 / -6.54	15,201	Google	Proprietary
34	Llama-3.1-405B-Instruct	809.61	+19.02 / -17.33	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