Everything you need to manage AI costs in 2026. Free calculators for token pricing, API bills, RAG pipeline expenses, and automation ROI. Compare GPT-5.5, Claude Opus 4.8, Gemini 3.5 Flash, and DeepSeek V3/R1 costs side by side.
AI API costs can spiral fast — but they're entirely predictable once you understand the math. Token pricing varies 200x (Gemini 2.0 Flash-Lite $0.075/1M input vs Claude Opus 4.8 $5/1M input = 20x) and 75x on output between the cheapest and most expensive models. Most teams using AI at scale don't know their true cost-per-query or monthly burn rate.
Our free AI calculators help you model costs before you build, track spend during operation, and find the cheapest model for each use case. All calculations are client-side and instant.
Compare token costs across GPT-5.5, Claude Opus 4.8, Claude Sonnet 4.6, Gemini 3.5 Flash, Gemini 2.0 Flash, and DeepSeek V3/R1. Input/output pricing per model.
Calculate Token Costs → TOKEN PRICINGEstimate your monthly OpenAI bill. GPT-5, GPT-4o, o3, o1, o3-mini pricing with request volume projections.
Calculate OpenAI Cost → OPENAICalculate Anthropic Claude API costs for Claude Opus 4.8, Claude Sonnet 4.6, and Claude Haiku 4.5. Monthly spend estimates.
Calculate Claude Cost → ANTHROPICGemini 3.5 Flash ($1.50/$9.00/M), context caching, Batch and Flex tiers. Plus 3.1 Flash Lite and 3.1 Pro. Updated May 2026.
Calculate Gemini Cost → GOOGLEDeepSeek R1 ($0.55/$2.20/M) and V3 ($0.27/$1.10/M). One of the cheapest reasoning models available.
Calculate DeepSeek Cost → DEEPSEEKCompare costs across 100+ models from OpenAI, Anthropic, Google, Meta, DeepSeek and more via OpenRouter.
Compare OpenRouter Models → OPENROUTERSide-by-side token pricing across all major providers. GPT vs Claude vs Gemini vs DeepSeek. Find the cheapest model for your use case.
Compare All LLM Costs → COMPARISONEstimate GPU and infrastructure costs for self-hosted models. Monthly cloud GPU expenses for LLM serving at any scale.
Estimate GPU Inference Cost → INFRASTRUCTURECalculate full RAG costs: embedding + vector storage + retrieval + LLM generation. Per-query and monthly projections.
Calculate RAG Pipeline Cost → RAGMeasure AI automation ROI. Labor cost savings vs API costs. Find break-even point and payback period for AI agents.
Measure AI Agent ROI → ROI| Model | Provider | Input / 1M Tokens | Output / 1M Tokens | Source |
|---|---|---|---|---|
| Gemini 2.0 Flash-Lite | $0.075 | $0.30 | Google AI Pricing ↗ | |
| Gemini 2.0 Flash | $0.10 | $0.40 | Google AI Pricing ↗ | |
| GPT-5 nano | OpenAI | $0.05 | $0.40 | OpenAI Pricing ↗ |
| GPT-4o mini | OpenAI | $0.15 | $0.60 | OpenAI Pricing ↗ |
| DeepSeek V3 | DeepSeek | $0.27 | $1.10 | DeepSeek Pricing ↗ |
| DeepSeek R1 | DeepSeek | $0.55 | $2.20 | DeepSeek Pricing ↗ |
| Claude Haiku 4.5 | Anthropic | $1.00 | $5.00 | Anthropic Pricing ↗ |
| Gemini 3.5 Flash | $1.50 | $9.00 | Google AI Pricing ↗ | |
| Gemini 3.1 Pro | $2.00 | $12.00 | Google AI Pricing ↗ | |
| Gemini 3.1 Flash-Lite | $0.25 | $1.50 | Google AI Pricing ↗ | |
| Gemini 3 Flash | $0.50 | $3.00 | Google AI Pricing ↗ | |
| Gemini 2.5 Pro | $1.25 | $10.00 | Google AI Pricing ↗ | |
| Gemini 2.5 Flash | $0.30 | $2.50 | Google AI Pricing ↗ | |
| Gemini 2.5 Flash-Lite | $0.10 | $0.40 | Google AI Pricing ↗ | |
| Claude Sonnet 4.6 | Anthropic | $3.00 | $15.00 | Anthropic Pricing ↗ |
| GPT-5.4 | OpenAI | $2.50 | $15.00 | OpenAI Pricing ↗ |
| GPT-5.5 | OpenAI | $5.00 | $30.00 | OpenAI Pricing ↗ |
| Claude Opus 4.8 | Anthropic | $5.00 | $25.00 | Anthropic Pricing ↗ |
Official Pricing Sources:
Gemini 2.0 Flash-Lite
$0.075 input / $0.30 output per 1M tokens
Verified May 29, 2026 · Google AI
GPT-5 nano or Gemini 2.0 Flash
GPT-5 nano: $0.05/$0.40 | Gemini 2.0 Flash: $0.10/$0.40
Best for >1M tokens/month workloads
o3-mini or DeepSeek R1
o3-mini: $1.10/$4.40 | DeepSeek R1: $0.55/$2.20
o3-mini for agents; DeepSeek R1 for budget reasoning
Based on official pricing as of May 29, 2026, ranked by total cost per million tokens (input + output):
Note: Gemini 2.0 Flash-Lite has the lowest output price at $0.30/1M. GPT-5 nano has the lowest input price at $0.05/1M. Prices sourced from official provider documentation.
Enter your usage numbers into any calculator above — or start with our Token Cost Calculator to compare models side by side.
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