Chat with Claude's most intelligent AI model, sporting a 200k context window for high-volume writing tasks and difficult coding challenges.
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200k context-window
Claude 4 can easily remember very long conversations and stay on topic, even if you upload large documents or long texts. No more worries that your AI chats are too long.
Best in-class AI coder
Claude 4 Sonnet scores 72.7% on the SWE-bench Verified agentic coding test, outperforming both Gemini 2.5 Pro and OpenAI o3.
Exccelent AI writer
Claude Sonnet 4 can output up to 64K tokens, which means that, unlike many competing models, it can write entire articles, essays, or research papers in one go.
High-quality AI answers
According to research by Anthropic, Claude 4 is 67% less likely to take a shortcut when answering your question, meaning that it is often more helpful than old-generation models.
Better memory
Claude 4 has significantly improved memory retention. When working with large documents, it can reference them accurately, and can follow instructions better, even in very long chats.
Thoughtful AI chats
Claude Sonnet 4 shows much better ability to isolate and remember key facts from your chats or saved documents. It saves them for later and knows when to bring them up based on context.
ChatGPT
Overchat
Text & Conversational AI
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GPT-o1
GPT-4.5
GPT-4.1
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Claude 4 Sonnet
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Gemini 2.5 Pro
Grok-3
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Mistral-7B
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Llama 4
Art & Images AI
DALL-E 3
FLUX
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Recraft
Stable Diffusion
Leonardo
Video Generation AI
Kling
Soon
Luma
Soon
Runway
Soon
ChatGPT
Text & Conversational AI
GPT 4o
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o1-preview
Limited
GPT 3.5
Limited
Art & Images AI
DALL-E 3
Overchat
Text & Conversational AI
GPT 4o
o1-preview
GPT 3.5
Claude 3.5 Sonnet
Claude 3 Haiku
Gemini 1.5 Pro
Grok-2
Mistral 7B
Llama 3.3
Art & Images AI
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Qwen2.5-VL
DALL-E 3
FLUX
Recraft
Stable Diffusion
Leonardo
Video Generation AI
Kling
Soon
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Luma
Soon
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Runway
Soon
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$12/m
$1.15
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All data in one place
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What is Claude Sonnet 4?
Claude Sonnet 4 is the most advanced AI model from Anthropic, featuring a mixed-reasoning modes, 200k context window, and best-in-class performance across coding and agentic reasoning applications.
How to access Claude Sonnet 4?
There are several ways to access Claude Sonnet 4. You can access it for free on Overchat AI or on the Claude AI website. Both platforms have limits on their free tiers, but offer premium plans with extended usage.
Claude Sonnet Vs. GPT-4 omni, which is better?
Compared to GPT-4 omni, Claude Sonnet 4 shows stronger performance in both coding and reasoning, making it a better model for most tasks.
Claude Sonnet 4 Vs. Google Gemini 2.5 Pro, which is better?
In coding benchmarks, Claude Sonnet 4 outperforms Google Gemini 2.5 Pro by ~10%, making it slightly better for coding tasks.
How to use Claude Sonnet 4 for free?
You can access Claude Sonnet 4 for free on Claude AI website or on Overchat AI. Both platforms offer free Sonnet 4 chats with usage limits that reset daily.
Can Claude Sonnet 4 solve homework?
Yes, Sonnet 4 is 25% more accurate than Sonnet 3.7 at solving complex math problems. It performs excellently on mathematical and scientific questions, making it a great homework helper.
