Live ranking, refreshed every 2 days
Best AI Models for Expert-Level Prompts
As of October 8, 2026, the top-ranked model on LMArena's text leaderboard, expert category is claude-fable-5-high by Anthropic with a score of 1,550, 3 points ahead of claude-opus-4-6-high by Anthropic.
Updated October 13, 2026. Showing the last saved copy of the leaderboard, dated October 8, 2026, because the live source could not be reached.
Ranking: top 10 models
Scores come from blind head-to-head votes on LMArena's text leaderboard, expert category. Rank is LMArena's published rank, which accounts for confidence intervals, so several models can share a rank. The top 10 are shown below, and ranks 11 to 40 follow in the expandable list.
| Rank | Model | Lab | Score | Votes | License |
|---|---|---|---|---|---|
| 1 | claude-fable-5-high | Anthropic | 1,550 ±9 | 4,468 | Proprietary |
| 2 | claude-opus-4-6-high | Anthropic | 1,547 ±8 | 7,238 | Proprietary |
| 3 | claude-sonnet-5.5-xhigh | Anthropic | 1,546 ±26 | 512 | Proprietary |
| 4 | gemini-4-argon-high | 1,543 ±26 | 519 | Proprietary | |
| 5 | claude-opus-5-high | Anthropic | 1,541 ±8 | 7,060 | Proprietary |
| 6 | claude-opus-5.5-high | Anthropic | 1,536 ±23 | 712 | Proprietary |
| 7 | claude-opus-4-7 | Anthropic | 1,534 ±8 | 7,121 | Proprietary |
| 8 | gpt-6.1-sol-max | OpenAI | 1,534 ±28 | 390 | Proprietary |
| 9 | claude-opus-4-7-high | Anthropic | 1,534 ±8 | 6,922 | Proprietary |
| 10 | claude-opus-4-6 | Anthropic | 1,534 ±7 | 8,663 | Proprietary |
Show ranks 11 to 40
Rank Model Lab Score License 11 kimi-k3-max Moonshot AI 1,533 ±12 Open weights 12 gpt-5.6-sol-xhigh OpenAI 1,533 ±10 Proprietary 13 mimo-v2.6-pro Xiaomi 1,531 ±27 Open weights 14 claude-opus-5-max Anthropic 1,530 ±11 Proprietary 15 muse-spark-1.3-max Meta 1,528 ±15 Proprietary 16 claude-opus-4-8-high Anthropic 1,526 ±8 Proprietary 17 gemini-3.8-flash-high Google 1,523 ±10 Proprietary 18 claude-fable-5.1-max Anthropic 1,522 ±18 Proprietary 19 deepseek-v4.1-flash-max DeepSeek 1,520 ±17 Open weights 20 glm-5.3-max Z.ai (Zhipu) 1,520 ±14 Open weights 21 claude-opus-4-8 Anthropic 1,515 ±8 Proprietary 22 gpt-5.4-high OpenAI 1,515 ±8 Proprietary 23 qwen3.8-max Alibaba (Qwen) 1,513 ±11 Proprietary 24 gpt-5.5-high OpenAI 1,513 ±8 Proprietary 25 glm-5.3-flash Z.ai (Zhipu) 1,511 ±12 Open weights 26 claude-sonnet-5-high Anthropic 1,511 ±9 Proprietary 27 gemini-3.7-flash-high Google 1,511 ±12 Proprietary 28 gpt-5.5 OpenAI 1,510 ±8 Proprietary 29 gemini-3.1-pro-preview Google 1,510 ±6 Proprietary 30 mimo-v2.5-pro Xiaomi 1,508 ±8 Open weights 31 gpt-6-astra-max OpenAI 1,508 ±19 Proprietary 32 qwen3.7-max-preview Alibaba (Qwen) 1,507 ±31 Proprietary 33 claude-sonnet-4-6 Anthropic 1,506 ±8 Proprietary 34 gpt-5.6-terra-xhigh OpenAI 1,504 ±9 Proprietary 35 claude-opus-4-5-20251101-high-32k Anthropic 1,503 ±12 Proprietary 36 muse-spark-1.1 Meta 1,503 ±9 Proprietary 37 kimi-k2.6 Moonshot AI 1,503 ±10 Open weights 38 claude-opus-4-5-20251101 Anthropic 1,503 ±8 Proprietary 39 glm-5.2-max Z.ai (Zhipu) 1,502 ±9 Open weights 40 qwen3.6-max-preview Alibaba (Qwen) 1,500 ±25 Proprietary
Showing the top 40 of 364 models on this leaderboard. Data from October 8, 2026.
Best model by lab
Each lab's highest-ranked model on this leaderboard, and how far it sits from the top.
| Lab | Best model | Rank | Score | Behind #1 |
|---|---|---|---|---|
| Anthropic | claude-fable-5-high | 1 | 1,550 | Leader |
| gemini-4-argon-high | 4 | 1,543 | 7 pts | |
| OpenAI | gpt-6.1-sol-max | 8 | 1,534 | 16 pts |
| Moonshot AI | kimi-k3-max | 11 | 1,533 | 17 pts |
| Xiaomi | mimo-v2.6-pro | 13 | 1,531 | 19 pts |
| Meta | muse-spark-1.3-max | 15 | 1,528 | 22 pts |
| DeepSeek | deepseek-v4.1-flash-max | 19 | 1,520 | 30 pts |
| Z.ai (Zhipu) | glm-5.3-max | 20 | 1,520 | 30 pts |
Which AI lab leads?
The lab with the most models at the top of the board is the one with the deepest bench, not only the single best model.
Anthropic holds 8 of the top 10 models (80%).
Models in the top 10 by lab
Show data table
| Lab | Top 10 |
|---|---|
| Anthropic | 8 |
| 1 | |
| OpenAI | 1 |
Open vs proprietary: how big is the gap?
The best open-weight model is kimi-k3-max by Moonshot AI at 1,533, 17 points behind the best proprietary model, claude-fable-5-high by Anthropic at 1,550. Their 95% confidence intervals overlap, so the data cannot separate them.
10 proprietary models rank above the best open-weight model, and 4 of the top 20 are open-weight.
Open-weight here means any license other than Proprietary, including licenses with usage limits. It is a broader definition than the OSI one.
Other leaderboards
LMArena runs separate arenas for different jobs. The best model for one is often not the best for another.
Other arenas
- Text (overall)
- WebDev: claude-opus-5.5-max by Anthropic, 1,813
- Vision: claude-fable-5-high by Anthropic, 1,308
- Search: gpt-5.6-sol-xhigh by OpenAI, 1,256
- Document: claude-fable-5 by Anthropic, 1,499
- Text to image: gpt-image-2.5-sunburst by OpenAI, 1,425
- Image editing: gpt-image-2.5-sunburst by OpenAI, 1,524
- Text to video: gemini-omni-1.1-flash by Google, 1,516
Text arena by category
How to read this leaderboard
This category keeps prompts written by people with domain expertise, which tend to be longer and more specific than everyday queries.
- Scores come from blind votes
- LMArena shows a person two anonymous answers to the same prompt and asks which is better. Those head-to-head votes are fitted with a Bradley-Terry model, the statistical successor to Elo, to give each model one arena score. On the Elo scale LMArena uses, a 100-point lead means the higher model is expected to win about 64% of matchups.
- Confidence intervals decide ties
- Every score carries a 95% confidence interval. When two intervals overlap, the order of those two models is not settled. LMArena's rank column already accounts for this, which is why more than one model can hold the same rank.
- Why it differs from usage share
- A high rank does not mean many people use a model. Usage depends on price, distribution and habit. For adoption rather than quality, see AI market share.
Methodology and source
All rankings are read from the LMArena leaderboard dataset on Hugging Face, published by LMArena (formerly Chatbot Arena) under the Creative Commons Attribution 4.0 license. Credit for the underlying votes, scores and confidence intervals belongs to LMArena. Essentras is not affiliated with LMArena.
This page reads the text_style_control subset, category expert, from the dataset's latest split. Scores, intervals, ranks, vote counts and license labels are shown as published. Essentras adds the grouping by lab and the derived figures on this page: gaps, lab shares, open vs proprietary and, on the main page, the history of who held #1.
Data refreshes automatically every 2 days. If the source cannot be reached, the page falls back to the last saved copy and says so at the top. Models are never merged or renamed; model and lab names appear exactly as LMArena publishes them.
Open-weight means any license other than Proprietary. History is limited to what the dataset records: the style-controlled text leaderboard from August 28, 2024. We do not scrape any other ranking site.
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Frequently asked questions
What is the best AI model for expert-level prompts?
As of October 8, 2026, claude-fable-5-high by Anthropic ranks first on LMArena's text leaderboard, expert category with a score of 1,550. Rankings move as models and votes are added, so check the table above for the current order.
Which AI lab leads for expert-level prompts?
Anthropic holds 8 of the top 10 models (80%), ahead of Google (1) and OpenAI (1).
Is the best open-source model close to the best proprietary model?
The best open-weight model is kimi-k3-max by Moonshot AI at 1,533, 17 points behind the best proprietary model, claude-fable-5-high by Anthropic at 1,550. 10 proprietary models rank above the best open-weight model, and 4 of the top 20 are open-weight. Their 95% confidence intervals overlap, so the data cannot separate them. "Open" here means any license other than Proprietary, which is broader than the OSI definition.
What does this leaderboard measure?
This category keeps prompts written by people with domain expertise, which tend to be longer and more specific than everyday queries.
How often does this leaderboard update?
This page re-reads LMArena's dataset every 2 days. LMArena publishes a new snapshot when it has gathered enough votes or added models, so the date at the top shows the latest published data.
Models rank themselves. What do they say about you?
A leaderboard shows which AI models are strongest. It does not show what those models tell your customers about your company. Run the free check and see the answers.