Top Free No-Training Tool-Calling AI Models
The best free no-training tool-calling AI models right now, ranked and compared on price, context window and features. 7 models match. These are models you can use at no cost, either through a free tier or because they are priced at zero, and models whose providers do not train on your prompts, and models that can call tools and functions, which agents depend on.
- Nemotron 3.5 Super VL
NVIDIA · 1.05M context · Free · ZDR · Images · Reasoning · Tools
$0.150 in
$0.500 out - Inkling Small
Thinkingmachines · 524K context · Free · ZDR · Images · Reasoning · Tools
$0.450 in
$1.20 out - Inkling
Thinkingmachines · 524K context · Free · ZDR · Images · Reasoning · Tools
$1.00 in
$4.05 out - Nemotron 3 Ultra
NVIDIA · 262K context · Free · ZDR · Reasoning · Tools
$0.600 in
$2.40 out - Gemma 4 26B A4B
Google · 262K context · Free · ZDR · Images · Reasoning · Tools
$0.076 in
$0.255 out - Gemma 4 31B
Google · 262K context · Free · ZDR · Images · Reasoning · Tools
$0.200 in
$0.400 out - Nemotron 3.5 Lightning
NVIDIA · 262K context · Free · ZDR · Reasoning · Tools
$0.070 in
$0.200 out
Prices are per 1M tokens. Ranked by intelligence score where available, then newest.