Model Pricing - ModelStack

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)

Example: A request to 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