Newton’s

Models

Compare available models, published prices, and capabilities before you create an API key.

Full compare

OpenAI: GPT-5.6 Luna

gpt-5.6-luna
Available

Text and reasoning for coding, analysis, and agent workflows.

by
OpenAI
Type
Text
Input
$0.20/M
Output
$1.22/M
Status
Available
View model details →

OpenAI: GPT-5.6 Terra

gpt-5.6-terra
Available

Text and reasoning for coding, analysis, and agent workflows.

by
OpenAI
Type
Text
Input
$1.10/M
Output
$6.59/M
Status
Available
View model details →

Claude Sonnet 5

claude-sonnet-5
Available

Text and reasoning for coding, analysis, and agent workflows.

by
Anthropic
Type
Text
Input
$1.60/M
Output
$8.00/M
Status
Available
View model details →

Claude Opus 5

claude-opus-5
Available

Text and reasoning for coding, analysis, and agent workflows.

by
Anthropic
Type
Text
Input
$3.80/M
Output
$19.60/M
Status
Available
View model details →

OpenAI: GPT-5.6 Sol

gpt-5.6-sol
Available

Text and reasoning for coding, analysis, and agent workflows.

by
OpenAI
Type
Text
Input
$2.70/M
Output
$16.20/M
Status
Available
View model details →