DeepInfer vs DeepInfra vs Medical DeepInfer: Name Check

The name DeepInfer also refers to an unrelated 2016 medical-imaging toolkit and an unrelated 2023 smart-contract type-inference project; this site covers only DeepSeek's 2026 inference framework. DeepInfer is not affiliated with DeepInfra, the commercial inference provider.

Four names, three DeepInfers, one misspelling

The shared token is “DeepInfer.” There is no shared codebase or ownership. The academic projects predate DeepSeek's framework by years; the commercial provider's name differs by two letters.

DeepInfer (DeepSeek, 2026)

What it is: DeepSeek's open-source inference framework for serving DeepSeek-V4.1-Flash at scale. It was released on 20 October 2026 under the Apache-2.0 license, with an offline inference engine for NVIDIA SM100 GPUs and Huawei Ascend 950 NPUs.

How to recognize it: the repository is under the deepseek-ai organization; the README describes it as “DeepInfer is the high-performance inference framework that powers DeepSeek's large-scale production services”; the feature list includes Wide-EP, EPLB, DSpark, SWA bounded replay, and structured outputs.

What it is not: a model, a hosted API, or a complete serving stack. The release omits the KV cache system, prefill/decode disaggregation, and data-parallel load balancing.

DeepInfer (medical imaging, 2016–2017)

What it is: an open-source deep-learning deployment toolkit for image-guided therapy, built as a 3D Slicer module with a model registry and Docker-based execution. It lets clinical researchers select a pre-trained model from a public registry and run it on new images without configuring a deep-learning environment.

Use cases in the paper: prostate segmentation for targeted MRI-guided biopsy, and target-plane identification in 3D ultrasound for spinal injections.

How to recognize it: Slicer-DeepInfer, Model-Registry, deepinfer.org, 3D Slicer, Docker, NIH/NSERC/CIHR funding, SPIE Medical Imaging 2017.

Why it matters for search: it has years of citations and a GitHub organization named simply DeepInfer, so it can still surface for the bare query “DeepInfer.”

DeepInfer (smart contracts, 2023)

What it is: a research framework that infers function signatures and return types from Ethereum smart-contract bytecode. It lifts bytecode into an intermediate representation, extracts type-related knowledge (data flows, constants, control-flow graphs), and recovers signatures for Solidity and Vyper contracts.

Why it exists: most deployed contracts are closed-source, and bytecode strips type information. Recovering signatures helps with contract identification, fuzzing, and vulnerability detection.

How to recognize it: sepine/DeepInfer, EVM, Solidity, Vyper, bytecode, function signatures, ESEC/FSE 2023, DOI 10.1145/3611643.3616343.

DeepInfra (not DeepInfer)

What it is: a commercial inference provider at deepinfra.com. It serves multiple models through APIs, including DeepSeek models, with per-token or per-hour pricing.

How to recognize it: the domain is deepinfra.com; the name ends in “-fra” rather than “-fer.” It is a service provider, not an engine project.

Important: DeepInfra serving DeepSeek models does not make it affiliated with DeepSeek's DeepInfer. They are separate entities in the same ecosystem.

The 30-second check

1. Look at the URL or repository owner. deepseek-ai/DeepInfer is DeepSeek. DeepInfer/... is medical. sepine/DeepInfer is smart contracts. deepinfra.com is the provider.
2. Look for the vocabulary. V4.1-Flash, SM100, Ascend 950, MoE, EP, KV cache → DeepSeek. 3D Slicer, Docker, prostate, ultrasound → medical. Solidity, Vyper, EVM, bytecode → smart contracts.
3. Look at the license. Apache-2.0 code plus MIT weights → DeepSeek. Slicer License or research code → the academic projects.
4. Look at the date. 2026-10-20 → DeepSeek. 2016/2017 → medical. 2023 → smart contracts.

Why search engines and AI answers mix them

• Same name, no unique entity ID. All three projects use “DeepInfer” without a disambiguating suffix.
• Old results have authority. The medical project has a GitHub organization, a SPIE paper, and years of citations; the smart-contract paper has an ACM DOI.
• New results arrive all at once. The 2026 launch generated a large volume of coverage in a day; ranking systems need time to separate the entities.
• DeepInfra is two letters away. An AI summary can easily turn “DeepInfra serves DeepSeek models” into “DeepInfer serves DeepSeek models.”
• The fields overlap. All three involve “deep learning” and “inference,” but one is LLM serving, one is medical imaging, and one is program analysis.

Queries that get you the right one

Quick answers

Next: the full FAQ, or what DeepSeek actually shipped.