Arena (formerly LMArena)

Human preference on answers that used live web search.

Arena Search: overall, Arena rating, higher is better
#	Model	Arena Search: overall · 95% range Arena rating, higher is better
1	GPT-5.6 SolOpenAI · GPT-5.6 Sol (xhigh)	1,256 1,248–1,263
2	Claude Fable 5Anthropic	1,229 1,221–1,237
2	GPT-5.5OpenAI	1,224 1,218–1,229
2	Claude Opus 4.6Anthropic	1,223 1,218–1,228
5	Claude Opus 4.7Anthropic	1,212 1,207–1,218
5	Gemini 3.1 Pro PreviewGoogle	1,208 1,202–1,213
5	grok-4.20-multi-agent-beta-0309xAI	1,205 1,199–1,210
5	Grok 4.5xAI	1,202 1,195–1,209
5	gemini-3-proGoogle	1,201 1,196–1,207
6	Claude Sonnet 4.6Anthropic	1,201 1,196–1,206
6	grok-4.20-beta1xAI	1,197 1,191–1,203
6	Claude Sonnet 5Anthropic	1,196 1,189–1,203
6	ernie-5.1Baidu	1,193 1,184–1,203
7	Claude Opus 4.8Anthropic	1,195 1,189–1,201
7	GPT-5.4OpenAI	1,195 1,189–1,200
8	grok-4-1-fastxAI	1,194 1,189–1,199
8	Grok 4.3xAI	1,193 1,188–1,199
8	o3OpenAI	1,192 1,185–1,199
8	gemini-3-flashGoogle	1,191 1,187–1,196
11	Claude Opus 4.5Anthropic	1,187 1,181–1,193
12	GPT-5OpenAI	1,183 1,175–1,190
15	GPT-5.1OpenAI	1,183 1,178–1,189
21	Claude Sonnet 4.5Anthropic	1,175 1,170–1,180
23	Claude Opus 4.1Anthropic	1,167 1,162–1,172
24	GPT-5.2OpenAI	1,162 1,156–1,167
24	grok-4-fastxAI	1,160 1,155–1,165
25	claude-opus-4Anthropic	1,151 1,145–1,156
27	ppl-sonar-pro-highPerplexity	1,143 1,137–1,149
27	Gemini 2.5 ProGoogle	1,142 1,137–1,147
28	ppl-sonar-reasoning-pro-highPerplexity	1,138 1,132–1,144
28	GPT-5.2OpenAI	1,137 1,131–1,143
32	grok-4xAI	1,121 1,115–1,128
33	api-gpt-4o-searchOpenAI	1,081 1,070–1,092
33	diffbot-small-xlDiffbot	1,062 1,053–1,071

Models share a rank when their ranges overlap. Results as published by Arena (formerly LMArena); we do not re-run them.

What it measures

Human preference on answers that used live web search.

Not accuracy or correctness: it ranks which answer voters preferred, with answer length and formatting controlled for.