AI API Cost Calculator
Calculate exact monthly costs for GPT-4o, Claude 3.5 Sonnet, Gemini 2.0 Flash, and other AI APIs. Enter your usage patterns and see real-time cost projections.
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Usage Parameters
Cost Projection
AI API Pricing Comparison 2026
| Model | Provider | Input /1M tokens | Output /1M tokens | Context | Best For |
|---|---|---|---|---|---|
| GPT-4o | OpenAI | $2.5 | $10 | 128K | General purpose, vision |
| GPT-4o mini | OpenAI | $0.15 | $0.6 | 128K | High volume, cost-sensitive |
| Claude 3.5 Sonnet | Anthropic | $3 | $15 | 200K | Coding, analysis, long docs |
| Claude 3.5 Haiku | Anthropic | $0.8 | $4 | 200K | Real-time, customer support |
| Claude Opus 4 | Anthropic | $15 | $75 | 200K | Complex reasoning, research |
| Gemini 2.0 Flash | $0.1 | $0.4 | 1M | Ultra-high volume, multimodal | |
| Gemini 2.0 Pro | $1.25 | $5 | 1M | Complex tasks, massive context | |
| o3-mini | OpenAI | $1.1 | $4.4 | 128K | Reasoning, STEM, code |
| Llama 3.3 70B | Groq / Together | $0.59 | $0.79 | 128K | Open source, self-hosted |
| Mistral Large 2 | Mistral AI | $2 | $6 | 128K | European compliance, multilingual |
Frequently Asked Questions
Which AI API is cheapest?
Gemini 2.0 Flash is currently the cheapest at $0.10/1M input tokens. GPT-4o mini and Claude Haiku are also very cost-effective for high-volume applications.
How do I reduce AI API costs?
Key strategies: (1) Cache repeated requests, (2) Compress prompts to reduce input tokens, (3) Use faster/cheaper models for simple tasks and only route complex requests to flagship models, (4) Implement request batching, (5) Use prompt caching features offered by Anthropic and OpenAI.
What is a token in AI APIs?
A token is roughly 4 characters or 0.75 words in English. 1,000 tokens ≈ 750 words. A typical paragraph is 100-200 tokens. The word "calculator" is about 2-3 tokens.