Documentation Index
Fetch the complete documentation index at: https://docs.modelstack.cc/llms.txt
Use this file to discover all available pages before exploring further.
How Pricing Works
Credits are deducted based on token usage. Each model has different input and output token rates. Prices are listed per 1 million tokens.
- Subscription credits are consumed at the base rates shown below
- Lifetime credits receive your plan’s discount (20% / 30% / 50% off)
Anthropic Models
| Model | Input / 1M tokens | Output / 1M tokens |
|---|
claude-opus-4-6 | $5.00 | $25.00 |
claude-opus-4-5 | $5.00 | $25.00 |
claude-opus-4-1 | $15.00 | $75.00 |
claude-sonnet-4-5 | $3.00 | $15.00 |
claude-sonnet-4-0 | $3.00 | $15.00 |
claude-opus-4 | $15.00 | $75.00 |
claude-haiku-4-5 | $1.00 | $5.00 |
claude-3-7-sonnet-20250219 | $3.00 | $15.00 |
claude-3-5-sonnet-20241022 | $3.00 | $15.00 |
claude-3-5-haiku-20241022 | $0.80 | $4.00 |
claude-3-haiku-20240307 | $0.25 | $1.25 |
OpenAI Models
| Model | Input / 1M tokens | Output / 1M tokens |
|---|
gpt-4o | $2.50 | $10.00 |
gpt-4o-mini | $0.15 | $0.60 |
gpt-4-turbo | $10.00 | $30.00 |
o1 | $15.00 | $60.00 |
o1-mini | $1.10 | $4.40 |
o3 | $10.00 | $40.00 |
o3-mini | $1.10 | $4.40 |
o4-mini | $1.10 | $4.40 |
Google Models
| Model | Input / 1M tokens | Output / 1M tokens |
|---|
gemini-2.5-pro | $1.25 | $10.00 |
gemini-2.5-flash | $0.15 | $0.60 |
gemini-2.0-flash | $0.10 | $0.40 |
gemini-2.0-flash-lite | $0.075 | $0.30 |
gemini-1.5-pro | $1.25 | $5.00 |
gemini-1.5-flash | $0.075 | $0.30 |
Lifetime Credit Discount Example
With the Pro plan (30% discount on lifetime credits):
| Model | Base Output Rate | Your Effective Rate |
|---|
claude-sonnet-4-5 | $15.00 / 1M tokens | $10.50 / 1M tokens |
gpt-4o | $10.00 / 1M tokens | $7.00 / 1M tokens |
gemini-2.5-flash | $0.60 / 1M tokens | $0.42 / 1M tokens |
Cost Estimation
To estimate the cost of a request:
Cost = (input_tokens × input_rate / 1,000,000) + (output_tokens × output_rate / 1,000,000)
claude-sonnet-4-5 with 1,000 input tokens and 500 output tokens:
Cost = (1,000 × $3.00 / 1,000,000) + (500 × $15.00 / 1,000,000)
= $0.003 + $0.0075
= $0.0105
