Cosmos 3 Nano
Cosmos 3 Nano is worth evaluating for long context and vision when its provider route and context window match the workload.
Use it for
- Teams evaluating long context and vision
- Workloads that can use a 256k context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Strict JSON or tool-calling flows
- Family
- Cosmos 3
- Released
- 2026-05-31
- Context
- 256k
- Parameters
- 16B
- Architecture
- Mixture of Transformers
- Specialization
- multimodal
- Openness
- Open weights
- License
- OpenMDW 1.1Commercial use: permitted
- Weights
- Available
- Code
- Unknown
- Training
- Pretrained
Cheapest of 1 route · NVIDIA NIM
About
Cosmos 3 Nano is NVIDIA's 16B-parameter omnimodel optimized for efficient inference on workstation-grade hardware (NVIDIA RTX PRO 6000). Architecture: dual-tower Mixture-of-Transformers with an 8B autoregressive Reasoner and an 8B diffusion-based Generator. The Reasoner supports up to 256K tokens of context for vision-language reasoning; the Generator produces video up to 720p at variable frame rates (default 189 frames). Natively handles text, image, video, audio (48kHz stereo), and robot action trajectories across 10+ robot embodiments including Franka Panda, UR, Google robot, and UMI. BF16 precision only. Available as open weights on Hugging Face and via the Cosmos 3 Reasoner NIM (NIM_MODEL_SIZE=nano). Intended for real-time robotics inference and edge-adjacent deployment. Robot action input/output is preserved in this description because the model schema does not have a dedicated action modality field.
Cosmos 3 Nano is an open-weight model in the Cosmos 3 family. The structured metadata tracks a 256k-token context window, multimodal input, audio, and reasoning. This page tracks provider routes through NVIDIA NIM. No headline benchmark score is tracked for Cosmos 3 Nano yet.
Top use-case fit
Long context
Included by capability and metadata signals in the decision map.
Vision
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| NVIDIA NIM | - | - | ProvisionedPartial |
Available via routers & gateways(1)
Capabilities
Benchmark peer barsfor Long context
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
cosmos-3-nanoFrequently asked questions
What is the context window of Cosmos 3 Nano?
Cosmos 3 Nano has a context window of 256k tokens.
When was Cosmos 3 Nano released?
Cosmos 3 Nano was released on 2026-05-31.
Which providers offer Cosmos 3 Nano?
Cosmos 3 Nano is available from 1 provider: NVIDIA NIM.
Cheapest of 1 route · NVIDIA NIM