
Best LLMs For Brainstorming: Overview, Tables and Costs
November 22, 2024
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Hugo Huijer
Let's face it - brainstorming can be challenging, especially when you're working solo. That's where Large Language Models (LLMs) come in handy. I've analyzed the latest data and pricing to help you find the perfect brainstorming partner. While I haven't personally tested all these models, I've gathered information from reliable sources to give you a solid overview of what's available.
What are the best LLMs for brainstorming?
When it comes to brainstorming, you need an LLM that can maintain context, generate creative ideas, and won't break the bank if you need multiple sessions. I've selected five promising options across different price points and capabilities.
Model | Context Window | Price (Input/Output) | Best For |
---|---|---|---|
Claude 3.5 Sonnet | 200K tokens | $3/$15 per 1M tokens | All-round brainstorming |
Gemini 1.5 Pro Preview | 1M tokens | $0.08/$0.31 per 1M tokens | Long, detailed sessions |
Open Mistral Nemo | 128K tokens | $0.3/$0.3 per 1M tokens | Budget-friendly ideation |
GPT-4O Mini | 128K tokens | $0.15/$0.6 per 1M tokens | Quick idea generation |
Claude 3 Haiku | 200K tokens | $0.25/$1.25 per 1M tokens | Rapid prototyping |

Anthropic - Claude 3.5 Sonnet
Think of Claude 3.5 Sonnet as your premium brainstorming buddy that won't completely empty your wallet. It strikes an excellent balance between power and cost, making it perfect for those who need quality output but don't want to pay for the top-tier Opus model.
Context Window | 200K tokens |
Input Cost | $3 per 1M tokens |
Output Cost | $15 per 1M tokens |

Google - Gemini 1.5 Pro Preview
If you're planning marathon brainstorming sessions, Gemini 1.5 Pro Preview might be your best bet. With its massive 1M token context window and surprisingly affordable pricing, it's like having a memory elephant that remembers everything you've discussed while keeping the meter running low.
Context Window | 1M tokens |
Input Cost | $0.08 per 1M tokens |
Output Cost | $0.31 per 1M tokens |

Mistral - Open Mistral Nemo
Open Mistral Nemo is like that reliable friend who's always there to bounce ideas off of. With its flat-rate pricing and decent context window, it's a solid choice for consistent brainstorming sessions without any pricing surprises.
Context Window | 128K tokens |
Input Cost | $0.3 per 1M tokens |
Output Cost | $0.3 per 1M tokens |

OpenAI - GPT-4O Mini
GPT-4O Mini brings OpenAI's expertise to the table at a fraction of their usual prices. It's like having access to a premium brainstorming service during a perpetual sale season. Perfect for those already familiar with OpenAI's style of interaction.
Context Window | 128K tokens |
Input Cost | $0.15 per 1M tokens |
Output Cost | $0.6 per 1M tokens |

Anthropic - Claude 3 Haiku
Haiku is the speedster of the bunch. While it's not as powerful as its Sonnet sibling, it maintains the same impressive context window and comes at a much lower price point. Perfect for when you need rapid-fire ideation sessions.
Context Window | 200K tokens |
Input Cost | $0.25 per 1M tokens |
Output Cost | $1.25 per 1M tokens |
Remember, the best LLM for brainstorming really depends on your specific needs. If you're doing extensive sessions, Gemini 1.5 Pro Preview's massive context window might be worth it. For balanced performance and cost, Claude 3.5 Sonnet is hard to beat. And if you're working with a tight budget, Open Mistral Nemo offers great value.
The good news is that you're not locked into any single option - you can try different models for different types of brainstorming sessions. Just keep in mind that these specs and prices are based on current data, and the LLM landscape is constantly evolving. Happy brainstorming!
The good news is that you're not locked into any single option - you can try different models for different types of brainstorming sessions. Just keep in mind that these specs and prices are based on current data, and the LLM landscape is constantly evolving. Happy brainstorming!