LMArena

AI model rankings, arena scores and model votes

Human-vote leaderboards for AI models across text, image, video, search, and web development.

Get leaderboard

Get leaderboard

Get ranked AI models, scores, votes, confidence intervals, organizations, licenses, and the last-updated date for an Arena leaderboard. Covers the overall rankings in seven listed arenas; up to 200 models.

Your information

CategoryOptional

Arena to rank, for example text or webdev. Available: text, webdev, vision, text_to_image, image_edit, search, text_to_video.

Max ResultsOptional

Maximum models to return, for example 25 (up to 200).

1 credit per run

Example results

Last Updated: 2026-09-25
Models: Models
Model Name Rank Votes License Arena Score Organization Leaderboard Link Confidence Interval
claude-opus-5.5-max
1
1,607
Proprietary
1,827
Anthropic
arena.ai
+18/-18
gpt-6-astra-max
2
4,908
Proprietary
1,792
OpenAI
arena.ai
+11/-11
claude-fable-5.1-max
3
5,313
Proprietary
1,751
Anthropic
arena.ai
+10/-10
claude-opus-5-max
4
15,627
Proprietary
1,693
Anthropic
arena.ai
+7/-7
gpt-6-sol-max
5
2,019
Proprietary
1,681
OpenAI
arena.ai
+15/-15

Models
Model Name	Rank	Votes	License	Arena Score	Organization	Leaderboard Link	Confidence Interval
claude-opus-5.5-max	1	1,607	Proprietary	1,827	Anthropic	arena.ai	+18/-18
gpt-6-astra-max	2	4,908	Proprietary	1,792	OpenAI	arena.ai	+11/-11
claude-fable-5.1-max	3	5,313	Proprietary	1,751	Anthropic	arena.ai	+10/-10
claude-opus-5-max	4	15,627	Proprietary	1,693	Anthropic	arena.ai	+7/-7
gpt-6-sol-max	5	2,019	Proprietary	1,681	OpenAI	arena.ai	+15/-15

Example data · Run in Studio for fresh results.

About LMArena

LMArena, also called Chatbot Arena, returns ranked models, scores, votes, confidence intervals, organizations, licenses, and update dates.

Get leaderboard takes an arena category and model limit, returning ranked entries for up to 200 models.

Built by Fous from arena.ai and checked automatically; it last passed a check on Sep 29, 2026. Fous is not affiliated with LMArena.

Actions

Get leaderboard

1 credit per run

What you provide

Field	Type	Required	Description
Category`category`	Text	Optional	Arena to rank, for example text or webdev. Available: text, webdev, vision, text_to_image, image_edit, search, text_to_video.Example: Webdev
Max Results`max_results`	Number	Optional	Maximum models to return, for example 25 (up to 200).Example: 5

What you get

Field	Type	Description
Models`models`	List	Models in the order shown on the leaderboard.
Rank`models[].rank`	Number	Rank on the selected leaderboard.Example: 1
Votes`models[].votes`	Number	Number of votes for this model.Example: 1607
License`models[].license`	Text	Displayed model license.Example: Proprietary
Model Name`models[].model_name`	Text	Displayed model name.Example: claude-opus-5.5-max
Arena Score`models[].arena_score`	Number	Displayed Arena score.Example: 1827
Organization`models[].organization`	Text	Organization behind the model.Example: Anthropic
Leaderboard Link`models[].leaderboard_link`	Text	Public page for this leaderboard.Example: https://arena.ai/leaderboard/code/webdev
Confidence Interval`models[].confidence_interval`	Text	Confidence interval exactly as displayed, such as ±12 or +18/-18.Example: +18/-18
Last Updated`last_updated`	Date	Date the selected leaderboard was last updated (YYYY-MM-DD).Example: 2026-09-25

Example result

For Category: Webdev, Max Results: 5

JSON

{
  "models": [
    {
      "rank": 1,
      "votes": 1607,
      "license": "Proprietary",
      "model_name": "claude-opus-5.5-max",
      "arena_score": 1827,
      "organization": "Anthropic",
      "leaderboard_link": "https://arena.ai/leaderboard/code/webdev",
      "confidence_interval": "+18/-18"
    },
    {
      "rank": 2,
      "votes": 4908,
      "license": "Proprietary",
      "model_name": "gpt-6-astra-max",
      "arena_score": 1792,
      "organization": "OpenAI",
      "leaderboard_link": "https://arena.ai/leaderboard/code/webdev",
      "confidence_interval": "+11/-11"
    },
    {
      "rank": 3,
      "votes": 5313,
      "license": "Proprietary",
      "model_name": "claude-fable-5.1-max",
      "arena_score": 1751,
      "organization": "Anthropic",
      "leaderboard_link": "https://arena.ai/leaderboard/code/webdev",
      "confidence_interval": "+10/-10"
    }
  ],
  "last_updated": "2026-09-25"
}

For developers

Run this workflow from your own code. In Studio, turn on Developer mode and create an API key.

cURL

# First set your key: export FOUS_API_KEY='YOUR_FOUS_API_KEY'
: "${FOUS_API_KEY:?Set FOUS_API_KEY before running this example}"

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 120 \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@lmarena",
  "visibility": "public",
  "operation": "get_leaderboard",
  "version": 1,
  "input": {
    "category": "webdev",
    "max_results": 5
  },
  "response": {
    "format": "json"
  }
}'

What you can do with it

Compare model rankings across arena categories
Track Arena scores and vote counts
Review model organizations and displayed licenses
Monitor confidence intervals for ranked models
Check when a selected leaderboard was last updated

Questions

Is Fous affiliated with LMArena?

No. Fous is not affiliated with LMArena. This workflow reads the public arena.ai website and returns its data.

How much does it cost?

Each run costs 1 credit. With pay-as-you-go, a credit costs 1¢; monthly plans cost less per credit.

Do I need a LMArena account?

No. You only need a Fous account.

How current is the data?

Fous gets the data from arena.ai when you run it; repeating the same request within a day may return the saved result. Fous checks this workflow automatically; it last passed a check on Sep 29, 2026.