Thinking Machines models on OpenRouter

Pricing

Thinking Machines models' list prices per 1M tokens, one review call and reading a pull request.

Inkling Small	$0.45	$1.20	–	$0.0147	$0.0118
Inkling	$1.00	$4.05	–	$0.036	$0.0262

Outside benchmarks by model
Model	Arena WebDev	Arena Agent	Epoch Capabilities Index
Inkling	1414range 1408 to 1420	-0.143range -0.158 to -0.129	149range 146 to 151
Inkling Small	1409range 1400 to 1418	-0.151range -0.169 to -0.133	150range 147 to 152

Source: LMArena CC BY 4.0, Oct 16, 2026 · Epoch AI CC BY 4.0, Oct 7, 2026