OpenAIGPT-5.6 Sol
Structure
Define the team's recurring tasks, score every model on the same prompts, and compare accuracy before cost.
Compare AI models
League of LLMs
Compare AI model answers side by side.
Choose from 10 AI providers and review their answers together. When judging succeeds, Best marks the strongest response.
Example comparison
Complex reasoning prompt- 01OpenAI94.8Selected
- 02Gemini92.1Reviewed
- 03Kimi89.6Reviewed
- 04Mistral87.4Reviewed
Available AI models
5 models are included with Free. Paid plans unlock all 10.- 01GPT-5.6 Sol
- 02Claude Sonnet 5
- 03Kimi K3
- 04Groq — GPT-OSS 120B
- 05Z.AI — GLM 5.1
- 06Cohere - Command A+
- 07Mistral Large 3
- 08Hugging Face — DeepSeek V4 Pro
- 09Gemini 3.6 Flash
- 10Muse Spark 1.2
How it works
Ask, compare, and choose.
Every model receives the same prompt, and every response remains available for review.
- 01One question
Ask
Write one prompt
Type or speak your question. Attach files, paste a web page, or turn on web search when current information matters.
- 02Up to 6 lanes
Compare
Arrange the models you need
Add, hide, or restore lanes without losing their conversations. Resize them, focus one model, or use a shortcut to send to one lane.
- 03Best when valid
Choose
Review the judge's decision
When judging succeeds, Best marks the strongest answer and explains why. Every answer stays visible. Save the comparison or share a read-only link.
AI judge
A best answer, only when the judge can choose.
The judge checks whether each answer addresses your question, then considers accuracy, completeness, clarity, and usefulness.
01First
Relevance
Does it answer the original question directly?
02Check
Accuracy
Are claims correct and consistent with available sources?
03Check
Completeness
Does it cover the work requested in the prompt?
04Check
Clarity
Is the answer useful, clear, and concise?
Live comparisonSame prompt · three models
Prompt
How should a small team choose an AI model for research, coding, and writing?
AnthropicClaude Sonnet 5
BestConstraints
Start with privacy, context, tools, and latency. Eliminate any model that fails a non-negotiable requirement.
GoogleGemini 3.6 Flash
Evaluation
Run a blind review with representative work, then choose a default model separately for research, code, and writing.
Anthropic gave the clearest decision framework while accounting for operational constraints.
FAQ
What to know before you start.
Short answers about comparisons, files, judging, and accounts.
01What is League of LLMs?+
A workspace for sending one question to several AI models. Their answers appear side by side. When judging succeeds, Best marks the strongest answer. You can also save or share the comparison.
02Why compare multiple models?+
Models have different strengths. Comparing the same prompt makes differences in accuracy, reasoning, clarity, and file handling easy to see.
03Can I compare answers using my own files?+
Yes. Attach images, PDFs, text, audio, or video. Plans allow up to 60 files in one question and files up to 500 MB, although each model may accept fewer or smaller files. The arena sends the original file when the model can read it and tells you when it uses extracted text instead.
04How does the AI judge select an answer?+
The judge compares every response with your question. It checks relevance and accuracy first, then completeness, clarity, and usefulness. When it returns a valid decision, it marks one answer Best and explains why. If judging fails, no winner is shown.
05Do I need an account?+
No. You can try 10 prompts before creating an account. A Free account adds daily usage, 5 models, file uploads, and 30 days of saved history. A short walkthrough explains the arena on your first visit.