AI · alternatives · 2026

24 alternatives to Cortex – Open-source alternative to SageMaker for model serving

Production infrastructure for machine learning at scale - GitHub - cortexlabs/cortex at v0.15.1

Cortex is an open-source platform for serving machine learning models, positioned as an alternative to Amazon SageMaker. Designed for developers and data scientists, it enables users to deploy and manage ML models in… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Cortex – Open-source alternative to SageMaker for model serving launched in 2020; newer entries below may have overtaken it.

1
Cortex – machine learning infrastructure for developers▲86
Production infrastructure for machine learning at scale - cortexlabs/cortex
2019 · github.com · its alternatives →
2
Cortexfree▲306
Turn API specs into docs, SDKs, and MCP servers
Sep 2026 · cortexdocs.dev · its alternatives →
3
Cortex▲81
Deploy, manage, and scale machine learning applications
2019 · its alternatives →
4
Zoo▲234
A free, open-source playground for AI image models
2023 · zoo.replicate.dev · its alternatives →
5
TensorFlow 1.0▲823
Open-source machine learning library by Google
2017 · tensorflow.org · its alternatives →
6
Spice.ai – materialize, accelerate, and query SQL data from any source▲177
Hi HN, We're Luke and Phillip, and we're building Spice.ai OSS - a lightweight, portable runtime, built in Rust and powered by Apache DataFusion to locally materialize, accelerate, and query data tables sourced from any database, data warehouse or data lake. Phillip and I first introduced Spice on Show HN in September 2021. Since then, we’ve been schooled and humbled in every way building 100TB+ data and ML systems for the https://spice.ai cloud platform. Along with our customers, we struggled with getting fast, low-latency, high-concurrency SQL query within a budget, accessing and…
2024 · github.com · its alternatives →
7
Cortex▲15
The easiest way to build machine learning apps
2020 · github.com · its alternatives →
8
Inferless▲749
Deploy any machine learning models in minutes
2025 · inferless.com · its alternatives →
9
Label Studio 1.8.0 Release▲185
Open source data labelling platform for AI model tuning
2023 · labelstud.io · its alternatives →
10
Mage▲595
The fastest way to build and use AI
2022 · mage.ai · its alternatives →
11
MakeML▲274
Train Neural Networks without a line of code
2019 · makeml.app · its alternatives →
12
TensorZero▲307
Hi HN! We're Gabriel & Viraj, and we're excited to open source TensorZero. To be a little cheeky, TensorZero is an open-source platform that helps LLM applications graduate from API wrappers into defensible AI products. 1. Integrate our model gateway 2. Send metrics or feedback 3. Unlock compounding improvements in quality, cost, and latency It enables a data & learning flywheel for LLMs by unifying: • Inference: one API for all LLMs, with <1ms P99 overhead • Observability: inference & feedback → your database • Optimization: better prompts, models, inference strategies • Experimentation:…
2025 · github.com · its alternatives →
13BP
Build predictive models with no prior ML experience▲70
TLDR: Product developers need tools designed for them to build ML models. We’d love for you to try a demo of Mage without needing to sign up: https://www.mage.ai/onboarding My name is Tommy DANGerous (or Tommy Dang) and I’m the CEO and co-founder at Mage. I worked at Airbnb for over 5 years as a product developer building features for guests. Mage is a web-based tool for building, training, and deploying ML models that make predictions based off your data. Training and using ML models in production typically requires working knowledge of building data pipelines, algorithms,…
2022 · its alternatives →
14
Cortex▲70
Run multiple claude-code agents from YAML config
Jan 2026 · cortex-cli.vercel.app · its alternatives →
15SA
Spice.ai – open-source, time series AI for developers▲35
2021 · blog.spiceai.org · its alternatives →
16
StackML▲252
Machine Learning platform in-browser, for creators
2019 · its alternatives →
17
MindsDB▲235
In-database machine learning
2022 · its alternatives →
18
TensorPort▲143
Help teams apply machine learning to real-world applications
2017 · its alternatives →
19
Tensorflow Research Cloud▲288
Accelerating open machine learning research with Cloud TPUs
2017 · sites.research.google · its alternatives →
20
Amazon SageMaker▲10
Build, train, and deploy machine learning models at scale
2017 · aws.amazon.com · its alternatives →
21
Spice.ai▲63
Hi HN, we’re Luke and Phillip, and we’re building Spice.ai OSS - a lightweight, portable data and AI engine and powered by Apache DataFusion & Ballista for SQL query, hybrid-search, and LLM-inference across disaggregated-storage used by enterprises like Barracuda Networks and Twilio. With v2.0, you can add a real-time analytics node to your operational database with high-throughput native CDC replication. We first introduced Spice [1] on HN in 2021 and re-launched it on HN [2] in 2024 re-built from the ground up in Rust. In 2025 we launched Spice Cayenne [5], our acceleration and query…
2023 · spice.ai · its alternatives →
22
Paperspace for Machine Learning▲152
A Linux desktop in the cloud built for Machine Learning
2016 · its alternatives →
23
ZenML▲84
Create reproducible machine learning pipelines
2020 · github.com · its alternatives →
24
End-to-end deep learning experimentation platform for Tensorflow▲151
AI Infra / AI Orchestration / AI Control Plane. Contribute to polyaxon/polyaxon development by creating an account on GitHub.
2017 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →