# Free LLM API Cost Calculator: Claude, GPT, Gemini | Alher Tech

> Calculate the monthly API cost of 40+ AI models from your token usage. Compare Claude, GPT-5, Gemini, DeepSeek and more with official list prices per million tokens.

- Canonical page: https://alhertech.com/en/llm-cost-calculator/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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Estimate your monthly bill for Claude, GPT, Gemini, DeepSeek and 40+ AI models from your real token usage. Free and 100% client-side.

## Example: 10,000 requests per month (1,500 input + 500 output tokens each)

| Model | Vendor | Price in/out ($/M) | Monthly (USD) |
| --- | --- | --- | --- |
| [Cursor Agent](https://alhertech.com/en/ai-comparison/cursor-agent/) | Cursor | $0 / $0 | $0.00 |
| [GitHub Copilot](https://alhertech.com/en/ai-comparison/github-copilot/) | GitHub / Microsoft | $0 / $0 | $0.00 |
| [Llama 4 Scout](https://alhertech.com/en/ai-comparison/llama-4-scout/) | Meta | $0.18 / $0.6 | $5.70 |
| [Mistral Small 3](https://alhertech.com/en/ai-comparison/mistral-small-3/) | Mistral AI | $0.2 / $0.6 | $6.00 |
| [Codestral](https://alhertech.com/en/ai-comparison/codestral/) | Mistral AI | $0.3 / $0.9 | $9.00 |
| [DeepSeek V3](https://alhertech.com/en/ai-comparison/deepseek-v3/) | DeepSeek | $0.27 / $1.1 | $9.55 |
| [Llama 4 Maverick](https://alhertech.com/en/ai-comparison/llama-4-maverick/) | Meta | $0.35 / $1.4 | $12.25 |
| [GPT-5 mini](https://alhertech.com/en/ai-comparison/gpt-5-mini/) | OpenAI | $0.25 / $2 | $13.75 |
| [Qwen 3](https://alhertech.com/en/ai-comparison/qwen-3/) | Alibaba | $0.4 / $1.6 | $14.00 |
| [Gemini 3 Flash](https://alhertech.com/en/ai-comparison/gemini-3-flash/) | Google DeepMind | $0.3 / $2.5 | $17.00 |
| [Kimi K2](https://alhertech.com/en/ai-comparison/kimi-k2/) | Moonshot AI | $0.5 / $2 | $17.50 |
| [DeepSeek R1](https://alhertech.com/en/ai-comparison/deepseek-r1/) | DeepSeek | $0.55 / $2.19 | $19.20 |

[Benchmarks and rankings for every model in the AI comparison](https://alhertech.com/en/ai-comparison/)

## Frequently asked questions

### Where do the prices come from?

Every price is the official list price per million tokens published by each provider (Anthropic, OpenAI, Google, DeepSeek, Mistral and others). The dataset is the same one that powers our AI model comparison hub and is refreshed on every deploy.

### How is the monthly cost calculated?

Monthly cost = requests per month x (input tokens x input price + output tokens x output price) / 1,000,000. It assumes list prices without volume discounts, batch APIs or cached-prompt savings, so treat it as a realistic upper bound.

### Can I reduce these costs without changing model?

Yes. Prompt caching can cut input costs by up to 90% for repeated system prompts, batch APIs typically halve the price for non-urgent workloads, and routing simple requests to a smaller model of the same family is the single biggest saving in production systems.

### Is my usage data sent anywhere?

No. The calculator runs entirely in your browser. Nothing you type is stored or transmitted.