Position in SVTR
Snapshot 2026-10-25- Startup SignalsTop 5%–
- Training & Inference Stack#3of 28
About
Flapping Airplanes, founded in 2025 in San Francisco, is an AI research lab focused on training new model architectures.
Full tier & rationale — an SVTR Intelligence benefit
Capital graph
Funding history
- 2026-10-21Series A$1.0B
Investors · Index Ventures, Lux Capital, Sequoia Capital, GV, Kleiner PerkinsSource · fortune.com ↗
- 2026-02Seed$180M
Investors · Sequoia Capital, GV, Index Ventures, Menlo VenturesSource · SVTR Weekly #142 ↗
Comparable companies· by market
This company
BusinessLatest roundTotal raisedDate- Flapping Airplanes
AI research lab/new model architectures
Series A · $1.2B · 2026-10
$1.2B
United States
BusinessLatest roundTotal raisedDate- Baseten
Provides AI model deployment infrastructure
Series D+ · $2.1B · 2026-06 · Valuation $13B
$2.1BValuation $13B - Fireworks AI
Helps developers and enterprises customize and run open-source AI models on their own data
Series D+ · $1.8B · 2026-07 · Valuation $18B
$1.8BValuation $18B - Minima AI
Optimized runtime combining model compression, KV-cache optimization and custom inference kernels, plus a managed inference API, for enterprises deploying LLM inference, reducing GPU usage and per-token cost
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China
BusinessLatest roundTotal raisedDate- Qingcheng.AI
AI compute system software: Chitu LLM inference engine and BaGuaLu training acceleration system, adapted to Chinese AI chips including Ascend, Hygon, MetaX and Moore Threads
Series A · 2026-10
— - APMIC
On-premises private LLM deployment and AI application platform for enterprises: PrivStation all-in-one on-prem AI platform, PrivModel model fine-tuning and distillation service, CaiGunn no-code enterprise assistant/customer service
— - ExponTech
In-house distributed software-defined storage SDS2.0, including AI-native KV Cache storage WQS, distributed block storage WDS and parallel file storage WFS, for AI inference/training storage and domestic IT substitution needs of government, enterprise and LLM vendors
Series B · 2026-10
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Europe
BusinessLatest roundTotal raisedDate- Farang
New AI model architecture to replace the Transformer, used to build domain-specific intelligent assistants
Seed · $2M · 2025-08
$2M - Clastix
Kubernetes multi-tenancy and hosted control plane platform kMetal (Capsule, Kamaji open-source projects) for AI lab and cloud provider clusters
Seed · $3M · 2026-09
$3M - Literal Labs
Develops custom logic-based AI models designed to be faster, more energy-efficient and more interpretable than traditional neural networks
Pre-Seed · $6M · 2025-06
$6M
Other / unspecified
BusinessLatest roundTotal raisedDate- Decart
Improves the efficiency of AI models to enable fast training and real-time inference
Undisclosed · $453M · 2026-05 · Valuation $100M
$453MValuation $100M - doubleAI
AI models that rewrite machine code at runtime to cut CPU/GPU compute costs
Series A · $220M · 2025-11 · Valuation $1.0B
$220MValuation $1.0B - Paritok
Context/token compression gateway and open-source 4B compression model for AI coding agents, reducing LLM API costs.
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Confirmed rounds only. Matched on subsector, sector, stage and funding scale — each verifiable on the company profiles.
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Request intro →Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.