20+ Best Alternatives to Fluidstack in 2026
Looking for an alternative to Fluidstack? Below are 20 AI startups working in the same space — ranked by our Neuron score so the most credible options come first. Each card shows what makes the tool a viable substitute, pricing signals, and funding stage.
- 1View alternative →
VAST Data
$2.4BUnifying software layer for AI infrastructure
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Enterprise · Contact sales
- 2View alternative →
Upscale AI
$300MPure-play AI networking infrastructure
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Enterprise · Contact sales
- 3View alternative →
Dash0
$155MAI-native observability platform built on OpenTelemetry
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 4View alternative →
Noma Security
$132MEnd-to-end security for agentic AI
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Pricing not listed
- 5View alternative →
VoltaGrid
$775MVoltaGrid provides hybrid power solutions that reduce emissions, optimize energy loads, and lower costs for industrial applications and data centers.
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Enterprise · Contact sales
- 6View alternative →
Vespa.ai
$31MBig-data serving engine for vector and lexical search
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 7View alternative →
Quantinuum
$2.6BWorld's largest integrated quantum computing company
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Enterprise · Contact sales
- 8View alternative →
Quantum Machines
$280MThe control layer powering the world's quantum computers
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Enterprise · Contact sales
- 9View alternative →
OpenRouter
$153MA unified API gateway to 400+ LLMs across 60+ providers
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free trial
- 10View alternative →
Ndea
$43MFrontier AI lab building AGI through deep learning-guided program synthesis.
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Contact-sales
- 11View alternative →
Neysa
$650MWhy it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 12View alternative →
Unconventional AI
$475MReinventing the computer with brain-inspired, energy-efficient AI hardware
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 13View alternative →
Parallel
$230MWeb search and research API purpose-built for AI agents
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free trial
- 14View alternative →
Emerald AI
$47.2MTurns AI data centers into flexible grid assets that ease power demand
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 15View alternative →
PhysicsX
$175MAI-native engineering simulation that optimizes physical products in minutes.
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Enterprise · Contact sales
- 16View alternative →
Inferact
$150MCommercial inference engine from the creators of vLLM
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Open source
- 17View alternative →
Story Protocol
$134MProgrammable IP blockchain for tracking and monetizing AI-era content
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 18View alternative →
RadixArk
$100MOpen infrastructure for frontier AI, built on SGLang
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Open source
- 19View alternative →
io.net
$40MDecentralized GPU cloud network aggregating compute for AI and ML workloads
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
- 20View alternative →
FriendliAI
$25MFast, cost-efficient generative AI inference for any model
Why it's similar: Shares categories with Fluidstack — AI Infrastructure.
💵 Free
Frequently asked questions
What are the best alternatives to Fluidstack?
The top-ranked alternatives to Fluidstack on NeuronFeed are VAST Data, Upscale AI, Dash0, Noma Security, VoltaGrid. Rankings are based on our Neuron score, which weighs funding, momentum and editorial signal.
Is there a free alternative to Fluidstack?
Yes — Dash0, Vespa.ai, Neysa offer a free plans. See the pricing column for each alternative above.
How is this list ranked?
We rank alternatives by shared categories with Fluidstack, then by our proprietary Neuron score (0–100) which combines funding, team quality, momentum, and editorial input. The list refreshes every 30 days.
Fluidstack vs VAST Data — which is better?
It depends on use case. VAST Data (Unifying software layer for AI infrastructure) is the #1-ranked alternative. See the full side-by-side at /compare/fluidstack-vs-vast-data.
Explore more around Fluidstack
Contextual paths to related AI startups, deals and rankings.