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

1477.51

License

Proprietary

95% CI

+7.34 / -8.86

Votes

5,848

Claude Opus 4.1 thinking-16k (20250805)

Anthropic

Arena Score

1472.43

License

Proprietary

95% CI

+10.07 / -9.85

Votes

5,312

Claude Opus 4.1 (20250805)

Anthropic

Arena Score

1462.29

License

Proprietary

95% CI

+9.68 / -7.74

Votes

5,582

Claude Sonnet 4.5 (thinking 32k)

Anthropic

Arena Score

1420.81

License

Proprietary

95% CI

+16.95 / -19.17

Votes

1,337

Gemini-2.5-Pro

Google

Arena Score

1400.96

License

Proprietary

95% CI

+6.85 / -7.07

Votes

11,022

GLM-4.6

ZAI

Arena Score

1397.82

License

MIT

95% CI

+11.05 / -8.59

Votes

5,442

DeepSeek-R1-0528

DeepSeek

Arena Score

1393.71

License

MIT

95% CI

+11.71 / -8.20

Votes

4,800

Claude Sonnet 4.5

Anthropic

Arena Score

1385.18

License

Proprietary

95% CI

+9.83 / -11.39

Votes

4,127

Claude Opus 4 (20250514)

Anthropic

Arena Score

1383.60

License

Proprietary

95% CI

+8.34 / -7.40

Votes

9,238

GLM-4.5

ZAI

Arena Score

1381.11

License

MIT

95% CI

+10.08 / -9.12

Votes

4,360

GLM-4.5-Air

ZAI

Arena Score

1368.63

License

MIT

95% CI

+14.14 / -14.58

Votes

1,425

Qwen3-Coder

Alibaba

#10

Arena Score

1366.55

License

Apache 2.0

95% CI

+5.56 / -5.93

Votes

9,741

DeepSeek-V3.1-thinking

DeepSeek

Arena Score

1363.46

License

DeepSeek

95% CI

+13.61 / -18.25

Votes

1,459

Claude Sonnet 4 (20250514)

Anthropic

#11

Arena Score

1363.32

License

Proprietary

95% CI

+7.92 / -5.77

Votes

11,526

Claude 3.7 Sonnet (20250219)

Anthropic

#11

Arena Score

1358.43

License

Proprietary

95% CI

+8.86 / -7.25

Votes

7,460

Qwen3-235B-A22B-Instruct-2507

Alibaba

#11

Arena Score

1350.82

License

Apache 2.0

95% CI

+19.54 / -21.52

Votes

992

DeepSeek-V3.1

DeepSeek

#13

Arena Score

1341.48

License

DeepSeek

95% CI

+13.69 / -16.09

Votes

1,304

Claude Haiku 4.5 (20251001)

Anthropic

#14

Arena Score

1337.97

License

Proprietary

95% CI

+14.61 / -15.02

Votes

1,832

qwen3-coder-plus-2025-09-23

Alibaba

#16

Arena Score

1335.48

License

Proprietary

95% CI

+8.72 / -8.47

Votes

3,972

Kimi-K2-Instruct

Moonshot

#19

Arena Score

1316.75

License

Modified MIT

95% CI

+7.19 / -7.38

Votes

7,027

Gemini-2.5-Flash

Google

#21

Arena Score

1288.64

License

Proprietary

95% CI

+6.74 / -5.17

Votes

11,543

GPT-4.1-2025-04-14

OpenAI

#22

Arena Score

1253.06

License

Proprietary

95% CI

+5.99 / -6.70

Votes

11,506

Claude 3.5 Sonnet (20241022)

Anthropic

#23

Arena Score

1238.17

License

Proprietary

95% CI

+5.25 / -6.08

Votes

26,267

DeepSeek-V3-0324

DeepSeek

#24

Arena Score

1207.92

License

MIT

95% CI

+19.12 / -19.43

Votes

1,094

DeepSeek-R1

DeepSeek

#24

Arena Score

1199.36

License

MIT

95% CI

+9.58 / -10.20

Votes

3,755

GPT-4.1-mini-2025-04-14

OpenAI

#24

Arena Score

1193.06

License

Proprietary

95% CI

+6.51 / -7.62

Votes

9,064

Qwen3-235B-A22B

Alibaba

#24

Arena Score

1189.52

License

Apache 2.0

95% CI

+8.49 / -8.41

Votes

5,600

o3-2025-04-16

OpenAI

#24

Arena Score

1186.32

License

Proprietary

95% CI

+8.05 / -6.78

Votes

5,572

Mistral Medium 3

Mistral

#26

Arena Score

1181.14

License

Proprietary

95% CI

+5.90 / -9.02

Votes

7,511

Grok-4-0709

xAI

#27

Arena Score

1174.62

License

Proprietary

95% CI

+7.25 / -7.91

Votes

7,685

grok-code-fast-1

xAI

#31

Arena Score

1152.04

License

Proprietary

95% CI

+11.83 / -11.58

Votes

4,745

Grok-3-preview-02-24

xAI

#31

Arena Score

1143.36

License

Proprietary

95% CI

+11.05 / -7.51

Votes

5,764

o3-mini-high (20250131)

OpenAI

#31

Arena Score

1136.75

License

Proprietary

95% CI

+8.88 / -11.34

Votes

2,979

Claude 3.5 Haiku (20241022)

Anthropic

#32

Arena Score

1133.41

License

Proprietary

95% CI

+5.27 / -4.79

Votes

22,213

MiniMax-M1

MiniMax

#32

Arena Score

1129.61

License

MIT

95% CI

+10.52 / -10.32

Votes

3,361

o4-mini-2025-04-16

OpenAI

#34

Arena Score

1117.95

License

Proprietary

95% CI

+7.94 / -7.56

Votes

8,850

gpt-oss-120b

OpenAI

#34

Arena Score

1095.78

License

Apache 2.0

95% CI

+32.81 / -29.22

Votes

759

o3-mini (20250131)

OpenAI

#37

Arena Score

1092.18

License

Proprietary

95% CI

+8.11 / -8.07

Votes

6,369

Gemini-2.0-Pro-Exp-02-05

Google

#37

Arena Score

1089.75

License

Proprietary

95% CI

+7.25 / -7.55

Votes

11,859

o1 (20241217)

OpenAI

#40

Arena Score

1045.17

License

Proprietary

95% CI

+7.53 / -8.42

Votes

9,235

o1-mini (20240912)

OpenAI

#40

Arena Score

1042.59

License

Proprietary

95% CI

+7.90 / -6.17

Votes

13,688

Gemini-2.0-Flash-001

Google

#40

Arena Score

1040.27

License

Proprietary

95% CI

+6.27 / -6.31

Votes

10,498

Gemini-2.0-Flash-Thinking-01-21

Google

#40

Arena Score

1029.74

License

Proprietary

95% CI

+17.98 / -16.61

Votes

1,058

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

Meta

#52

Arena Score

809.62

License

Llama 3.1

95% CI

+15.34 / -21.47

Votes

1,117

Rank (UB)	Model	Arena Score	95% CI	Votes	Organization	License
1	GPT-5 (high)	1477.51	+7.34 / -8.86	5,848	OpenAI	Proprietary
1	Claude Opus 4.1 thinking-16k (20250805)	1472.43	+10.07 / -9.85	5,312	Anthropic	Proprietary
1	Claude Opus 4.1 (20250805)	1462.29	+9.68 / -7.74	5,582	Anthropic	Proprietary
4	Claude Sonnet 4.5 (thinking 32k)	1420.81	+16.95 / -19.17	1,337	Anthropic	Proprietary
4	Gemini-2.5-Pro	1400.96	+6.85 / -7.07	11,022	Google	Proprietary
4	GLM-4.6	1397.82	+11.05 / -8.59	5,442	ZAI	MIT
4	DeepSeek-R1-0528	1393.71	+11.71 / -8.20	4,800	DeepSeek	MIT
5	Claude Sonnet 4.5	1385.18	+9.83 / -11.39	4,127	Anthropic	Proprietary
6	Claude Opus 4 (20250514)	1383.60	+8.34 / -7.40	9,238	Anthropic	Proprietary
6	GLM-4.5	1381.11	+10.08 / -9.12	4,360	ZAI	MIT
8	GLM-4.5-Air	1368.63	+14.14 / -14.58	1,425	ZAI	MIT
10	Qwen3-Coder	1366.55	+5.56 / -5.93	9,741	Alibaba	Apache 2.0
8	DeepSeek-V3.1-thinking	1363.46	+13.61 / -18.25	1,459	DeepSeek	DeepSeek
11	Claude Sonnet 4 (20250514)	1363.32	+7.92 / -5.77	11,526	Anthropic	Proprietary
11	Claude 3.7 Sonnet (20250219)	1358.43	+8.86 / -7.25	7,460	Anthropic	Proprietary
11	Qwen3-235B-A22B-Instruct-2507	1350.82	+19.54 / -21.52	992	Alibaba	Apache 2.0
13	DeepSeek-V3.1	1341.48	+13.69 / -16.09	1,304	DeepSeek	DeepSeek
14	Claude Haiku 4.5 (20251001)	1337.97	+14.61 / -15.02	1,832	Anthropic	Proprietary
16	qwen3-coder-plus-2025-09-23	1335.48	+8.72 / -8.47	3,972	Alibaba	Proprietary
19	Kimi-K2-Instruct	1316.75	+7.19 / -7.38	7,027	Moonshot	Modified MIT
21	Gemini-2.5-Flash	1288.64	+6.74 / -5.17	11,543	Google	Proprietary
22	GPT-4.1-2025-04-14	1253.06	+5.99 / -6.70	11,506	OpenAI	Proprietary
23	Claude 3.5 Sonnet (20241022)	1238.17	+5.25 / -6.08	26,267	Anthropic	Proprietary
24	DeepSeek-V3-0324	1207.92	+19.12 / -19.43	1,094	DeepSeek	MIT
24	DeepSeek-R1	1199.36	+9.58 / -10.20	3,755	DeepSeek	MIT
24	GPT-4.1-mini-2025-04-14	1193.06	+6.51 / -7.62	9,064	OpenAI	Proprietary
24	Qwen3-235B-A22B	1189.52	+8.49 / -8.41	5,600	Alibaba	Apache 2.0
24	o3-2025-04-16	1186.32	+8.05 / -6.78	5,572	OpenAI	Proprietary
26	Mistral Medium 3	1181.14	+5.90 / -9.02	7,511	Mistral	Proprietary
27	Grok-4-0709	1174.62	+7.25 / -7.91	7,685	xAI	Proprietary
31	grok-code-fast-1	1152.04	+11.83 / -11.58	4,745	xAI	Proprietary
31	Grok-3-preview-02-24	1143.36	+11.05 / -7.51	5,764	xAI	Proprietary
31	o3-mini-high (20250131)	1136.75	+8.88 / -11.34	2,979	OpenAI	Proprietary
32	Claude 3.5 Haiku (20241022)	1133.41	+5.27 / -4.79	22,213	Anthropic	Proprietary
32	MiniMax-M1	1129.61	+10.52 / -10.32	3,361	MiniMax	MIT
34	o4-mini-2025-04-16	1117.95	+7.94 / -7.56	8,850	OpenAI	Proprietary
34	gpt-oss-120b	1095.78	+32.81 / -29.22	759	OpenAI	Apache 2.0
37	o3-mini (20250131)	1092.18	+8.11 / -8.07	6,369	OpenAI	Proprietary
37	Gemini-2.0-Pro-Exp-02-05	1089.75	+7.25 / -7.55	11,859	Google	Proprietary
40	o1 (20241217)	1045.17	+7.53 / -8.42	9,235	OpenAI	Proprietary
40	o1-mini (20240912)	1042.59	+7.90 / -6.17	13,688	OpenAI	Proprietary
40	Gemini-2.0-Flash-001	1040.27	+6.27 / -6.31	10,498	Google	Proprietary
40	Gemini-2.0-Flash-Thinking-01-21	1029.74	+17.98 / -16.61	1,058	Google	Proprietary
40	Llama-4-Maverick-17B-128E-Instruct	1027.01	+9.97 / -9.71	5,474	Meta	Llama 4
45	Gemini-2.0-Flash-Exp	980.08	+5.84 / -6.26	14,454	Google	Proprietary
45	Qwen2.5-Max	975.53	+6.66 / -8.37	11,073	Alibaba	Proprietary
46	GPT-4o-2024-11-20	964.00	+6.48 / -6.48	18,601	OpenAI	Proprietary
46	DeepSeek-V3	959.80	+8.95 / -6.83	7,699	DeepSeek	DeepSeek
49	Qwen2.5-Coder-32B-Instruct	901.98	+6.81 / -6.79	16,199	Alibaba	Apache 2.0
49	Llama-4-Scout-17B-16E-Instruct	901.04	+24.53 / -24.33	687	Meta	Llama 4
49	Gemini-1.5-Pro-002	892.57	+6.92 / -6.68	15,159	Google	Proprietary
52	Llama-3.1-405B-Instruct	809.62	+15.34 / -21.47	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