Estimate the VRAM, system RAM, and disk space needed to run an open-weight LLM locally, and which common GPUs and Macs it fits on. Covers Llama, Mistral, Qwen, DeepSeek, Gemma, Phi, Code Llama, Command R, Yi, SmolLM, StableLM, Grok, Falcon, and MiniCPM across FP32 through Q2_K quantization.
This page documents the HTTP endpoint POST /api/tools/llm-requirements-calculator/execute. See the MCP reference →
Call it over REST
POST https://api.findutils.com/api/tools/llm-requirements-calculator/execute · no API keys · 60 requests/min per IP
Execute — verified arguments
curl -X POST https://api.findutils.com/api/tools/llm-requirements-calculator/execute \
-H "Content-Type: application/json" \
-d '{
"model": "llama-3.1-8b",
"quantization": "q4_k_m",
"context_length": 8192
}'Parameter schema for this endpoint
curl https://api.findutils.com/api/tools/llm-requirements-calculatorInput schema
| Argument | Type | Required | Description |
|---|---|---|---|
| model | string (llama-3.2-1b | llama-3.2-3b | llama-3.1-8b | llama-3.1-70b | llama-3.1-405b | mistral-7b | mistral-nemo | mixtral-8x7b | mixtral-8x22b | mistral-small-3 | qwen-2.5-0.5b | qwen-2.5-1.5b | qwen-2.5-3b | qwen-2.5-7b | qwen-2.5-14b | qwen-2.5-32b | qwen-2.5-72b | qwen-2.5-coder-7b | qwen-2.5-coder-32b | qwen-qwq-32b | deepseek-r1-distill-7b | deepseek-r1-distill-14b | deepseek-r1-distill-32b | deepseek-r1-distill-70b | deepseek-v3 | deepseek-r1 | gemma-2-2b | gemma-2-9b | gemma-2-27b | phi-3-mini | phi-3-medium | phi-4 | codellama-7b | codellama-13b | codellama-34b | codellama-70b | qwen-3-0.6b | qwen-3-1.7b | qwen-3-4b | qwen-3-8b | qwen-3-14b | qwen-3-32b | qwen-3-235b | command-r-35b | command-r-plus | yi-1.5-6b | yi-1.5-9b | yi-1.5-34b | smollm-2-135m | smollm-2-360m | smollm-2-1.7b | stablelm-2-1.6b | stablelm-2-12b | grok-1 | falcon-3-1b | falcon-3-3b | falcon-3-7b | falcon-3-10b | minicpm-3-4b) | yes | Model id (or exact display name). One of: llama-3.2-1b, llama-3.2-3b, llama-3.1-8b, llama-3.1-70b, llama-3.1-405b, mistral-7b, mistral-nemo, mixtral-8x7b, mixtral-8x22b, mistral-small-3, qwen-2.5-0.5b, qwen-2.5-1.5b, qwen-2.5-3b, qwen-2.5-7b, qwen-2.5-14b, qwen-2.5-32b, qwen-2.5-72b, qwen-2.5-coder-7b, qwen-2.5-coder-32b, qwen-qwq-32b, deepseek-r1-distill-7b, deepseek-r1-distill-14b, deepseek-r1-distill-32b, deepseek-r1-distill-70b, deepseek-v3, deepseek-r1, gemma-2-2b, gemma-2-9b, gemma-2-27b, phi-3-mini, phi-3-medium, phi-4, codellama-7b, codellama-13b, codellama-34b, codellama-70b, qwen-3-0.6b, qwen-3-1.7b, qwen-3-4b, qwen-3-8b, qwen-3-14b, qwen-3-32b, qwen-3-235b, command-r-35b, command-r-plus, yi-1.5-6b, yi-1.5-9b, yi-1.5-34b, smollm-2-135m, smollm-2-360m, smollm-2-1.7b, stablelm-2-1.6b, stablelm-2-12b, grok-1, falcon-3-1b, falcon-3-3b, falcon-3-7b, falcon-3-10b, minicpm-3-4b. |
| quantization | string (fp32 | fp16 | q8_0 | q6_k | q5_k_m | q4_k_m | q3_k_m | q2_k) | no | Quantization id. Default: "q4_k_m". Default: "q4_k_m". |
| context_length | integer | no | Context window in tokens (512-131072). Default: 8192. Default: 8192. |
| batch_size | integer | no | Concurrent sequences (1-64). Default: 1. Default: 1. |
Example arguments (verified)
{
"model": "llama-3.1-8b",
"quantization": "q4_k_m",
"context_length": 8192
}Also an MCP tool
Claude, Cursor, and any MCP client can call this tool as
findutils:llm_requirements_calculator after one connect command.
Connect once
claude mcp add findutils --transport http https://mcp.findutils.com/More Calculators tools
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