Models & Pricing

Supported models and pricing for Hosted Training

This page lists supported models and per-token pricing for the legacy shared LoRA service. Full fine-tuning (FFT) is currently in closed beta.

Shared Hosted Training for LoRA runs will stop accepting new runs on October 8, 2026. Hosted Training is transitioning to dedicated runs. Existing LoRA adapters will remain downloadable and deployable until further notice.

Available Models

Prices are per million tokens, billed separately for input, output, and training.

Model	Input ($ / 1M)	Output ($ / 1M)	Train ($ / 1M)
Qwen/Qwen3.5-0.8B	0.02	0.06	0.06
Qwen/Qwen3.5-2B	0.05	0.15	0.15
Qwen/Qwen3.5-4B	0.10	0.30	0.30
Qwen/Qwen3.5-9B	0.20	0.60	0.60
Qwen/Qwen3.5-35B-A3B	0.25	0.75	1.00
Qwen/Qwen3.6-35B-A3B	0.25	0.75	1.00
meta-llama/Llama-3.2-1B-Instruct	0.02	0.06	0.06
meta-llama/Llama-3.2-3B-Instruct	0.05	0.15	0.15
nvidia/NVIDIA-Nemotron-3.5-Lightning-30B-A3B-BF16	0.15	0.45	0.60
openai/gpt-oss-20b	0.10	0.30	0.40
poolside/Laguna-XS.2	0.00	0.00	0.00
sprints/Llama-3.2-1B-Instruct	0.00	0.00	0.00

Trace storage charges

Traces uploaded to Prime Traces incur separate ingestion and storage charges. They are not included in the model token rates above. The workspace’s Usage Limits contains the upload control.

The November 6 legacy sample storage retirement is separate from the October 8 shared LoRA service shutdown.

Choosing a Model

For Validation and Debugging

Start with a small, fast model to verify your environment and config work correctly before committing compute to a larger run.

Recommended: Qwen/Qwen3.5-0.8B or meta-llama/Llama-3.2-1B-Instruct

model = "Qwen/Qwen3.5-0.8B"
max_steps = 50
batch_size = 128
rollouts_per_example = 8

For Experimentation

MoE models with small active parameter counts give strong performance per token.

Recommended: Qwen/Qwen3.5-35B-A3B

model = "Qwen/Qwen3.5-35B-A3B"
max_steps = 200
batch_size = 256
rollouts_per_example = 16

For Production Training

For serious training runs where you want the strongest results available, use a flagship MoE model.

Recommended: Qwen/Qwen3.6-35B-A3B

model = "Qwen/Qwen3.6-35B-A3B"
max_steps = 500
batch_size = 512
rollouts_per_example = 16

Thinking Mode

Qwen3.5 and Nemotron models support a thinking mode that produces extended chain-of-thought reasoning before the final answer. Toggle it via [sampling].enable_thinking in your config. Thinking mode tends to help on tasks that benefit from multi-step reasoning (math, code, logic) at the cost of longer outputs.

Checking Available Models

Always use the CLI to check the current list of supported models:

prime train models

Add --output json to get the live pricing alongside the model list. This may differ from this page as models are being added regularly.