Vellum AI
Vellum AI Pricing Plans
Claude Opus 4.5
Per 1M TokensHigh input/output capacity
$5 input / $25 output
Highlights
Affordable input/output pricing
High performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Claude Sonnet 4.5
Per 1M TokensBalanced pricing for input/output
$3 input / $15 output
Highlights
Cost-effective for mid usage
High performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Gemini 3 Pro
Per 1M TokensAffordable input/output pricing
$2 input / $12 output
Highlights
Great for budget users
High performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Kimi K2 Thinking
Per 1M TokensLow-cost entry option
$1 input / $3 output
Highlights
Very affordable
Ideal for small projects
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
GPT 5.1
Per 1M TokensMid-range pricing
$1 input / $10 output
Highlights
Good balance of cost and performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
GPT-5
Per 1M TokensMid-range pricing
$1 input / $10 output
Highlights
Good balance of cost and performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Claude Opus 4.1
Per 1M TokensHigher capacity option
$15 input / $75 output
Highlights
High performance
Ideal for large projects
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
GPT oss 20b
Per 1M TokensVery low-cost option
$0 input / $0 output
Highlights
Extremely affordable
Ideal for testing
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
GPT oss 120b
Per 1M TokensVery low-cost option
$0 input / $1 output
Highlights
Affordable for testing
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Grok 4
Not available for pricing
n/a
Highlights
Not available for pricing
Claude 4 Opus
Per 1M TokensHigher capacity option
$15 input / $75 output
Highlights
High performance
Ideal for large projects
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Claude 4 Sonnet
Per 1M TokensBalanced pricing for input/output
$3 input / $15 output
Highlights
Cost-effective for mid usage
High performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
Gemini 2.5 Flash
Per 1M TokensLow-cost entry option
$0 input / $1 output
Highlights
Very affordable
Ideal for small projects
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
OpenAI o3
Per 1M TokensMid-range pricing
$10 input / $40 output
Highlights
Good balance of cost and performance
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
OpenAI o4-mini
Per 1M TokensAffordable entry option
$1 input / $4 output
Highlights
Affordable for small projects
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
GPT-4.1 nano
Per 1M TokensLow-cost entry option
$0 input / $0 output
Highlights
Very affordable
Ideal for small projects
Get Started easily
Key Features
Input tokens
Output tokens
Custom pricing
Trial days
GPT-4.1 mini
Per 1M TokensLow-cost entry option
$0 input / $2 output
Highlights
Affordable for small projects
Get Started easily