Modern frontier AI models have more parameters than there are neurons in a human brain. They keep doubling every year.
How to Play: Guess if the model on the right has MORE or FEWER parameters than the one on the left.
Name A
Name B
Top 10 Largest Public AI Models
Parameter counts indicate model size. Closed models (GPT-4, Claude, Gemini) often don’t disclose; open models (Llama, Qwen) do.
| # | Name | Parameters (billions) | Unit |
|---|---|---|---|
| 1 | GPT-4 (estimated) | 1,700 | B |
| 2 | GPT-4o (estimated) | 1,500 | B |
| 3 | Gemini Ultra (estimated) | 1,500 | B |
| 4 | Gemini 1.5 Pro (estimated) | 800 | B |
| 5 | DeepSeek V3 | 671 | B |
| 6 | DeepSeek-R1 | 671 | B |
| 7 | PaLM (Google) | 540 | B |
| 8 | Claude 3 Opus (estimated) | 500 | B |
| 9 | Llama 3.1 405B | 405 | B |
| 10 | Falcon 180B | 180 | B |
How Parameter Counts Are Reported
A parameter is a learnable value (weight) in a neural network. More parameters = more capacity, but not always better — efficiency and training data also matter.
Frontier closed models don’t disclose parameter counts. Estimates for GPT-4 (1.7T) come from Microsoft research papers and leaks. Claude 3.5 Sonnet is roughly 175B based on inference cost analysis.
Open models from Meta (Llama), Mistral, Qwen, and DeepSeek lead in disclosed sizes. DeepSeek-R1 (671B) is the largest fully-open reasoning model as of late 2024.
Frequently Asked Questions
Largest AI model?
GPT-4 at ~1.7 trillion parameters (estimated). Closed models don’t disclose officially.
Does more parameters mean smarter?
Roughly yes within a model family, but training data and architecture matter as much. GPT-4 is smarter than GPT-3 not just from scale.
How does Claude compare?
Claude 3.5 Sonnet (~175B) achieves performance similar to much larger models due to architectural efficiency.
Why so many open models?
Meta, Mistral, and DeepSeek release open weights to build ecosystems and enable academic research. Closed competitors keep weights private.
Note: Parameter counts per model technical reports. Closed model sizes are estimates.
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