NinjaTools

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Q: About character limits per chat

Hello
I understand that credit consumption doesn't change depending on the model used, but for text generation, what is the character limit per chat?
I understand that generating long text is difficult, but I would like an approximate answer about the amount of text allowed per chat.

100920503778847234967PLUSMay 19, 2025
Founder Team
Abdulla_NinjaTools

Abdulla_NinjaTools

May 19, 2025

A: Different models have different context window sizes, which determine the maximum size of the conversation:

Claude 3.7 Sonnet: 200,000 tokens (contextWindow) with 64,000 output tokens
Claude 3.5 Sonnet and Claude 3 Opus: 200,000 tokens with 4,096 output tokens
GPT-4o: 128,000 tokens with 16,384 output tokens
GPT-4.1: 1,048,576 tokens with 32,768 output tokens
Gemini 1.5 Pro: 2,097,152 tokens with 8,192 output tokens

For English text, one token is approximately 4 characters or 0.75 words. So for the Claude 3.7 Sonnet model with a 200,000 token context window, that's roughly 800,000 characters for the entire conversation.

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Posted: May 19, 2025

When registered with a monthly subscription for ChatGPT or Claude chats, the output token limit for chats is usually less than the output token limit for API, but is it correct to understand that NinjaTools' output token limit can be used the same as API, and furthermore it's 1 credit per chat?

I apologize, but the pricing is so generous that I find it hard to believe.

Founder
Posted: May 19, 2025

We got startup credit from OpenAI and AWS. So, our API cost is very low, and we are also profitable through our monthly subscription plan.