AI model comparison
Every AI model in ChatRFH, and what each one is best at
ChatRFH gives you 24 frontier models from OpenAI, Anthropic, Google, xAI and DeepSeek inside one chat — with one account and one bill. This page lists the exact models available today and the kind of work each one handles best.
TL;DR: Keep the picker on Auto and ChatRFH routes each message to the right model. Switch manually when you want a specific strength: reasoning depth, long context, real-time news, or lowest cost.
Full model list (24 models)
| Model | Provider | Best for |
|---|---|---|
| GPT-5 nano | OpenAI | Short, repetitive tasks at scale |
| GPT-5 mini | OpenAI | Fast general writing and Q&A |
| GPT-5 | OpenAI | Solid reasoning for work tasks |
| GPT-5.2 | OpenAI | Problem solving and structured output |
| GPT-5.4 nano | OpenAI | Cheapest OpenAI option |
| GPT-5.4 mini | OpenAI | Speed with good quality |
| GPT-5.4 | OpenAI | Advanced reasoning and code |
| GPT-5.4 Pro | OpenAI | Long, multi-step professional work |
| GPT-5.5 | OpenAI | Best all-round quality |
| GPT-5.5 Pro | OpenAI | The hardest analytical problems |
| Claude Haiku 4.5 | Anthropic | Fast summaries and drafting |
| Claude Sonnet 4.5 | Anthropic | Writing, editing and coding |
| Claude Opus 4.5 | Anthropic | Complex writing and deep analysis |
| Gemini 3 Flash | Everyday questions, images and documents | |
| Gemini 3.1 Flash Lite | High-volume, cost-sensitive tasks | |
| Gemini 3.5 Flash | Coding and reasoning on a budget | |
| Gemini 3.1 Pro | Harder reasoning and long analysis | |
| Gemini 2.5 Pro | Very long documents and large context | |
| Gemini 2.5 Flash | Balanced everyday chat | |
| Gemini 2.5 Flash Lite | Fastest, cheapest quick answers | |
| Grok 4 Fast | xAI | Real-time news and X/Twitter context |
| Grok 4 | xAI | Real-time research with reasoning |
| DeepSeek V3 | DeepSeek | Low-cost general chat and code |
| DeepSeek R1 | DeepSeek | Step-by-step reasoning at low cost |
Model availability reflects the current ChatRFH catalog and changes as providers ship new versions. Premium models require a paid plan.
How to pick a model
Deep reasoning and analysis
Use GPT-5.5 Pro, Claude Opus 4.5 or DeepSeek R1 when the answer matters more than the wait: financial models, legal-style analysis, debugging, strategy documents.
Writing and editing
Claude Sonnet 4.5 and GPT-5.5 keep tone and structure best across long drafts, emails and content that has to sound human.
Long documents and files
Gemini 2.5 Pro and Gemini 3.1 Pro handle very large context, so they are the ones to use for contracts, reports and multi-file uploads.
Real-time information
Grok 4 and Grok 4 Fast pull live web and X/Twitter context, which makes them the best choice for news, prices and anything happening right now.
Cheap, high-volume work
Nano and Lite models plus DeepSeek V3 cost a fraction per message — ideal for classification, short rewrites and repetitive batch tasks.
FAQ
How many AI models does ChatRFH include?
ChatRFH gives you 24 models from OpenAI, Anthropic, Google, xAI and DeepSeek in a single chat, plus an Auto mode that picks the best one for each message.
Do I need separate subscriptions for each AI model?
No. One ChatRFH account covers every model on the list. You switch models from the picker inside a conversation instead of paying for ChatGPT Plus, Claude Pro and Gemini Advanced separately.
Which AI model should I use?
Leave it on Auto unless you have a reason not to. For deep analysis pick GPT-5.5 Pro or Claude Opus 4.5, for long documents pick Gemini 2.5 Pro, for real-time news pick Grok 4, and for cheap bulk work pick a nano/lite model or DeepSeek V3.
Can I compare answers from different models?
Yes. Change the model in the picker and re-send the same prompt in a new thread to compare quality, tone and speed side by side.
Is there a free plan?
Yes. The Free plan includes monthly credits so you can test the models before upgrading; paid plans start at $8/month.
New to AI? Read how to learn AI or see what ChatRFH can do.