LLM API cost calculator for Claude, GPT and Gemini
Estimate LLM API cost per request, day and month for Claude Opus 5.5, GPT-6.1 Sol, Gemini 4 Argon and other models, with current prices per 1M tokens
Result
Monthly cost
$240
- Cost per request
- $0.0080
- Daily cost
- $8.00
- Yearly cost
- $2,920
LLM API prices per 1M tokens
Standard prices for current Claude, GPT and Gemini models in US dollars per million tokens. Pick a model above to fill the calculator with its prices.
| Model | Provider | Input | Cached input | Output |
|---|---|---|---|---|
| Claude Fable 5.1 | Anthropic | $10.00 | $0.25 | $50.00 |
| Claude Opus 5.5 | Anthropic | $4.00 | $0.20 | $20.00 |
| Claude Sonnet 5.5 | Anthropic | $2.00 | $0.10 | $10.00 |
| Claude Haiku 5.5 Prompts up to 100K tokens | Anthropic | $0.10 | $0.01 | $0.50 |
| GPT-6 Astra Up to 272K input tokens | OpenAI | $10.00 | $1.00 | $50.00 |
| GPT-6.1 Sol Up to 272K input tokens | OpenAI | $2.00 | $0.10 | $10.00 |
| GPT-6.1 Terra Up to 272K input tokens | OpenAI | $1.00 | $0.05 | $5.00 |
| GPT-6 Luna Up to 272K input tokens | OpenAI | $0.10 | $0.01 | $0.50 |
| Gemini 4 Argon Introductory price until 30 Nov 2026, then $4 / $20 | $2.00 | $0.10 | $10.00 | |
| Gemini 3.1 Pro (preview) Prompts up to 200K tokens | $2.00 | $0.20 | $12.00 | |
| Gemini 3.8 Flash Introductory price until 31 Dec 2026, then $1.50 / $7.50 | $0.75 | $0.075 | $3.75 | |
| Gemini 3.5 Flash-Lite | $0.30 | $0.03 | $2.50 |
Prices checked on November 3, 2026 from the official pricing pages: Anthropic, OpenAI, Google. Batch, priority and regional pricing differ. Always confirm on the provider’s page before you budget.
How it is calculated
Cost per request = input tokens × input price + output tokens × output price, with prices per million tokens. Monthly cost assumes 30 days.
Keep in mind
The default prices are Claude Sonnet 5.5 list prices checked on 3 November 2026. Prices change, so confirm them on your provider’s pricing page.
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