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Best Foundation Models AI Tools

128 tools compared · 2026

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

128 foundation models startups tracked, with the largest concentration in US. Total tracked funding: $387.2B.

Tracked
128
Total Raised
$387.2B
Countries
20
Active Deals
9

Editor's picks

6

Top by score

View all 128 →

Funding by year — Foundation Models

2019 → 2026
$11M
’19
$1.6B
’21
$1.1B
’22
$26.0B
’23
$29.4B
’24
$88.8B
’25
$237.3B
’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 24
  • Seed 19
  • Series B 18
  • Series C 7
  • Series E 6
  • Other 3
  • IPO 3
  • Series F 2

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
Jul 2026 Nous Research Other $75M
Jun 2026 Generalist AI Series B $400M
May 2026 Anthropic Series H $65B
May 2026 Decart Other $300M
May 2026 Cerebras Systems Other $5.5B
May 2026 Recursive Superintelligence Seed $650M
May 2026 Moonshot AI Series C $2B

All Foundation Models startups

Page 1

Anthropic

US est. 2021

AI safety lab building Claude — a helpful, harmless, honest AI assistant.

Raised
$133.1B
Stage
S-D
85

OpenAI

US est. 2015

Creator of ChatGPT, GPT-4, and the leading frontier AI lab.

Raised
$193.3B
Stage
S-E
83

Perplexity

US est. 2022

AI-powered answer engine delivering real-time, cited responses to complex queries.

Raised
$2.0B
Stage
S-F
82

Nebius

Netherlands est. 2024

Full-stack AI cloud with large-scale GPU clusters for training and inference

Raised
$700M
Stage
PRIVATE_PLACEMENT
77

Moonshot AI

CN est. 2023

Maker of Kimi — the long-context AI chatbot.

Raised
$3B
Stage
S-C
76

Mistral AI

Verified
FR est. 2023

Open and efficient foundation models

Raised
$6.3B
Stage
Debt
76

Zyphra

United States est. 2020

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

Raised
$110M
Stage
S-A
75

Upstage

est. 2020

South Korean AI company best known for its Solar family of large language models and its

Raised
$117M
Stage
S-B
73

LMArena

United States est. 2025

Crowdsourced leaderboard for ranking AI models

Raised
$250M
Stage
S-A
73

Essential AI

United States est. 2023

Transformer co-inventor Ashish Vaswani's open AI lab behind Essential-Web and Rnj-1

Raised
$64.8M
Stage
S-A
72

MiniMax

IPO
CN est. 2021

Chinese AI lab behind Hailuo video and Talkie companions.

Raised
$2.2B
Stage
IPO
71

Rebellions

KR est. 2020

Rebellions provides high-performance AI inference infrastructure, enabling efficient and scalable AI deployment for real-world applications.

Raised
$850M
Stage
PRE-IPO
70

Arcee AI

United States est. 2023

Domain-adapted small language models and open-weight model platform

Raised
$29.5M
Stage
SERIES_A
70

Deep Cogito

United States est. 2024

San Francisco lab building open hybrid-reasoning models on the path to superintelligence

Raised
$13M
Stage
Seed
70

humans&

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

Raised
$480M
Stage
Seed
70

Cellular Intelligence

United States

Foundation models for human stem cells to industrialize cell therapy production

Raised
$47M
Stage
S-A
69

Runway

US est. 2018

Applied AI research for video, image, and 3D.

Raised
$1.4B
Stage
S-E
68

LightOn

PUBLIC
France est. 2016

The retrieval and document-intelligence API for enterprise AI

Raised
$12.6M
Stage
IPO
68

Goodfire

AI interpretability research lab making neural networks understandable and editable

Raised
$150M
Stage
S-B
68

Fundamental

AI research company with a new approach to big data analysis

Raised
$255M
Stage
S-A
68

PaleBlueDot AI

Global AI compute platform scaling infrastructure for training and inference

Raised
$150M
Stage
S-B
68

Flapping Airplanes

Frontier data efficiency lab researching AI that learns more from less

Raised
$180M
Stage
Seed
68

Thinking Machines Lab

US est. 2025

Frontier AI research lab building customizable, multimodal models

Raised
$2B
Stage
Seed
67

Yoneda Labs

United States est. 2023

Foundation AI model for chemistry

Raised
$4M
Stage
Seed
67