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Best Foundation Models AI Tools

129 tools compared · 2026

DeepSeek-V3 reset inference pricing in a single quarter — every other lab is still recalibrating

129 foundation models startups tracked, with the largest concentration in US. Total tracked funding: $437.7B.

Tracked
129
Total Raised
$437.7B
Countries
20
Active Deals
9

Editor's picks

6

Top by score

View all 129 →

Funding by year — Foundation Models

2019 → 2026
$11M
’19
$1.6B
’21
$1.1B
’22
$30.8B
’23
$33.1B
’24
$89.8B
’25
$271.5B
’26

Market overview

Open with the price chart: in late 2024, DeepSeek-V3 shipped a 671B-parameter MoE that matched GPT-4-class quality at roughly 1/30th the inference cost, and DeepSeek-R1 followed with reasoning at frontier parity. OpenAI cut GPT-4o pricing twice in the next two quarters, Anthropic released Claude 4 and a Haiku tier priced to compete, and Google's Gemini 2.5 / 3 family undercut both on long-context. 68 published labs now sit under that pricing pressure, with $293B in cumulative disclosed funding — the most capital-intensive category on the platform.

The two-lab gravity well

OpenAI ($193.3B raised, ~$852B valuation, Series E) and Anthropic ($67.6B raised, Series G) absorb most of the western enterprise spend. Mistral AI ($6.3B raised including debt, France) holds the European open-weight position; Black Forest Labs ships frontier image generation from Germany. China runs a parallel stack: Zhipu AI ($1.49B, GLM-4 family) and MiniMax ($2.2B, IPO'd, Hailuo video plus Talkie) compete inside markets the western labs cannot serve directly. Behind them, Cohere ($1.77B Series E ext.), AI21 Labs ($336M Series C), 01.AI ($200M Series A, Yi family), and Reka AI ($180M Series B) defend narrower enterprise and multimodal slices.

The cost compression below

DeepSeek's reported $5.6M training run for V3 — even with the usual caveats about hardware accounting — broke the assumption that frontier-class quality required nine-figure compute spend. Llama 4 from Meta extended the open-weight pressure. Liquid AI ($300M Series B) is going the other direction with state-space architectures aimed at edge and on-device deployment. Skild AI ($2.2B Series C) and Physical Intelligence ($735M Series B) are training models for robotics, where the data bottleneck is the moat, not the GPU budget. 20 disclosed rounds in the trailing 12 months averaged $9.5B — the highest of any NeuronFeed category and an order of magnitude above the platform median.

What 2026 actually tests

Whether scaling laws hold above $1B per training run. Ineffable Intelligence raised $1.1B at seed on a pure scaling thesis. Safe Superintelligence raised $3B Series B for the same. If quality-per-dollar keeps compressing the way DeepSeek and Mistral have shown, the value moves to whoever owns distribution, fine-tuning, and proprietary data. If the next training generation produces another step-change, capital concentration tightens further.

Key trends 2026

  • DeepSeek-V3/R1 reset the cost curve. A reported $5.6M training run for V3 plus reasoning parity from R1 forced GPT-4o, Claude, and Gemini price cuts in 2025 — every economics deck in the category was rewritten.
  • Open-weight pressure is now a constant. Mistral ($6.3B), Llama 4, DeepSeek, and 01.AI's Yi family ship competitive weights on staggered cadence; closed-source labs price against the best open release each quarter.
  • Robotics models are the next data moat. Skild AI ($2.2B Series C) and Physical Intelligence ($735M) train on physical-world data nobody else has — the bottleneck is sensors and demonstrations, not GPUs.
  • Average round size dwarfs every other category. $9.5B average across 20 disclosed rounds — frontier-model training is still the single most capital-intensive activity in tech.

Benchmarks vs global

Total funding tracked
$293B
largest of any category by capital ↑
Avg round (last 12mo)
$9.5B
order of magnitude above platform median ↑
DeepSeek-V3 reported training cost
~$5.6M
forced GPT-4o / Claude / Gemini price cuts ↓
Companies tracked
68
24 US HQs (37%), 6 China —

Top countries

By startup count

Stage breakdown

Latest round type
  • Series A 23
  • Seed 21
  • Series B 19
  • Other 9
  • Series C 6
  • Series F 4
  • Series E 4
  • IPO 3

Top investors backing Foundation Models

See all →

FAQ

Frequently asked

Did DeepSeek-V3 actually train for $5.6M?
The figure DeepSeek published refers to the final pretraining run on H800s and excludes prior research, ablations, and infrastructure amortization. Independent estimates put the all-in cost at $50M-$100M+, still an order of magnitude below frontier western labs. The 2025 pricing reaction from OpenAI, Anthropic, and Google confirms the market took the implied efficiency seriously regardless of how the headline number is parsed.
Where does GPT-5 fit relative to Claude 4 and Gemini 2.5 / 3?
GPT-5 leads on agent-trace reasoning benchmarks; Claude 4 (Opus and Sonnet 4.5) leads on coding-specific eval suites including SWE-Bench Verified; Gemini 2.5 / 3 leads on long-context retrieval and multimodal reasoning at scale. Pricing has converged: all three frontier families now ship Haiku/mini/Flash tiers priced within roughly 2x of each other for comparable capability.
Why is Mistral the only European frontier lab at scale?
Capital and timing. Mistral closed €600M+ rounds early enough to assemble a frontier training team and shipped open-weight Mixtral and Mistral Large before EU AI Act compliance overhead made greenfield labs harder to fund. Black Forest Labs (Germany) holds image generation; Aleph Alpha pivoted to enterprise sovereignty plays. The European thesis now rests on open weights, sovereign deployment, and regulatory positioning rather than chasing frontier text directly.
Will the frontier club stay small?
The capital trend says yes; the efficiency trend says no. $9.5B average rounds and $293B cumulative funding favor incumbents. Distillation, MoE efficiency, DeepSeek-class training tricks, and open-weight catch-up cycles work the other way. The 2026 question is whether the gap to frontier compresses faster than the cost to reach it grows. So far in 2025-26, the compression has been winning.
Where do robotics foundation models like Skild and Physical Intelligence fit?
They sit in this category because they train large pretrained models from scratch — just on physical-world data instead of text. Skild AI ($2.2B Series C) is building a generalist robot brain; Physical Intelligence ($735M Series B) ships pi-class models for manipulation. The economics differ: data acquisition (teleoperation, sim-to-real) is the bottleneck rather than GPU spend, which is why their cap tables look more like deep-tech rounds than text-LLM mega-rounds.

Recent rounds in Foundation Models

All rounds →
Date Startup Round Amount
— Together AI Series C $800M
— DeepSeek Other $7.4B
Nov 2026 OpenAI Other $11B
Oct 2026 OpenAI Other $11B
Oct 2026 TypeSafe AI Other $870M
Sep 2026 Crusoe Series F $3.9B
Sep 2026 Crusoe Other $3B
Aug 2026 Generalist AI Series B $200M

All Foundation Models startups

Page 4

Kumo

US est. 2021

Relational foundation model for predictive AI

Raised
$37M
Stage
S-B
51

DeepSeek

CN est. 2023

Open-weights frontier AI models with breakthrough efficiency.

Raised
$7.4B
Stage
OTHER
50

Tavus

US est. 2020

AI video personalization platform

Raised
$40M
Stage
S-B
50

Moondream

United States est. 2024

Tiny open vision-language models that run anywhere, from M87 Labs

Raised
$4.5M
Stage
Pre-S
50

Sarvam AI

IN

India's full-stack sovereign AI platform, built on sovereign compute and powered by frontier-class models for population-scale impact.

Raised
$41M
Stage
S-A
49

Kyutai

FR

An open-science AI lab dedicated to building and democratizing Artificial General Intelligence through open research.

Raised
$330M
Stage
Grant
49

Zyphra

United States est. 2020

Open-science AI lab building efficient multimodal models and the Maia superagent

Raised
$110M
Stage
S-A
49

Yoneda Labs

United States est. 2023

Foundation AI model for chemistry

Raised
$4M
Stage
Seed
49

Trillion Labs

South Korea est. 2024

Seoul lab building open Korean foundation models and AI-for-AI-factories infrastructure

Raised
$4.2M
Stage
Seed
49

Patronus AI

US

A frontier lab training the first Digital World Models to simulate and predict agent actions in digital workflows.

Raised
$20M
Stage
S-A
45

Aster

US est. 2026

The first AI-native AI research lab using agentic workflows to accelerate model discovery.

Raised
$500K
Stage
Seed
45

LightOn

PUBLIC
France est. 2016

The retrieval and document-intelligence API for enterprise AI

Raised
$12.6M
Stage
IPO
44

Cellular Intelligence

United States

Foundation models for human stem cells to industrialize cell therapy production

Raised
$47M
Stage
S-A
41

Upstage AI

KR

Building intelligence for the future of work with high-performance AI solutions.

Raised
$72M
Stage
S-B
39

Midjourney

US est. 2021

Independent AI image generation lab.

Stage
BOOTSTRAPPED
38

Sakana AI

JP est. 2023

An AI R&D company based in Tokyo, Japan, focused on developing AI solutions tailored for Japan's needs and democratizing AI.

37

Etched

Etched is building custom hardware to accelerate large language models and achieve superintelligence.

Raised
$700M
Stage
OTHER
37

Integral AI

JP est. 2021

Self-learning AI models for industrial robots and autonomous systems

Raised
$15.5M
Stage
Seed
37

Magic

US est. 2022

Building frontier code models to automate software engineering and research.

Stage
GROWTH
36

Sea AI Lab - SAIL

SG

Incubating the future by understanding and creating intelligence from first principles to solve challenging problems.

36

humans&

Human-centric AI research lab founded by Anthropic, xAI and Google alums

Raised
$480M
Stage
Seed
36

ELYZA

JP est. 2020

ELYZA is an AI company focused on Deep Learning, developing proprietary large language models and supporting major corporations in their LLM adoption.

35

Pleias

France est. 2024

Paris lab training small open models on fully open, rights-cleared data

35

Fundamental

AI research company with a new approach to big data analysis

Raised
$255M
Stage
S-A
35