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Free AI Engineering Tools & Calculators

Interactive client-side calculators to estimate API token spend, convert context windows, size GPU VRAM for open-weight LLMs, and compare prompts side by side.

Aggiornato: 10 giugno 2026
Live Multi-Model Prompt Tokenizer & Batch API Cost Matrix

Paste Prompt, JSON, or Code to Count BPE Tokens & Compare Monthly API Bills

Characters / Words
213 / 28
OpenAI o200k_base
~56 tokens
Anthropic Claude BPE
~59 tokens
Llama / DeepSeek BPE
~61 tokens
Expected Output Tokens / Call:800 tok
Monthly API Request Volume:25,000 / mo
ModelTierIn / Out ($/1M)Per Call ($)Monthly (25K Calls)
GPT-4.1 Nano(OpenAI)Ultra-Fast Router$0.1 / $0.4$0.00033$8.14
Gemini 2.5 Flash(Google)High-Volume Value$0.15 / $0.6$0.00049$12.21
Llama 3.3 70B(Meta)Open Standard$0.59 / $0.79$0.00067$16.63
DeepSeek V3(DeepSeek)Open-Weights MoE$0.27 / $1.1$0.00090$22.38
DeepSeek R1(DeepSeek)Open Reasoning$0.55 / $2.19$0.00178$44.57
Gemini 2.5 Pro(Google)Long-Context Flagship$1.25 / $10$0.00807$201.75
GPT-4o(OpenAI)Omni Flagship$2.5 / $10$0.00814$203.50
Grok 4(xAI)Frontier Reasoning$2.5 / $10$0.00814$203.50
Claude 3.7 Sonnet(Anthropic)Coding & SWE Leader$3 / $15$0.01217$304.20
Claude Opus 4.5(Anthropic)Heavy Research & Code$5 / $25$0.02028$507.00

Stimatore interattivo dei costi API

Calcola la fattura mensile prevista in base all’uso giornaliero di token del tuo team

Preset:
Token di input giornalieri50,000 token
1K / giorno~1.50M / mese500K / giorno
Token di output giornalieri15,000 token
500 / giorno~0.45M / mese150K / giorno
Claude 3.7 Sonnet
$11.25 / mese

Annuale: $135.00 · ($3.00 in input / $15.00 in output per 1M)

GPT-4o Risparmia 27%
$8.25 / mese

Annuale: $99.00 · ($2.50 in input / $10.00 in output per 1M)

Scegliere GPT-4o fa risparmiare circa $3.00 al mese ($36.00/anno) con questo volume di utilizzo.