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Updated March 30, 2026

H33 vs Zama — The Complete Comparison

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By Eric Beans, CEO, H33.ai, Inc.
Dimension Zama H33
Company
Founded 2020, Paris 2025, Tampa
Funding $150M+, $1B valuation Self-funded
Team ~200, ~50% PhDs Lean
Focus Blockchain FHE Post-quantum security infrastructure
Open Source License BSD-3-Clear + patent license Apache 2.0 (no patent fee)
FHE Engines
Schemes Available 1 (TFHE) 4 (BFV-128, BFV-256, CKKS, BFV-32)
Auto Engine Selection No Yes (FHE-IQ, <500ns)
SIMD Batching Limited 4,096 slots, 32 users/ciphertext
Per-Operation Latency 124ms (64-bit add) 38.5µs per auth (3,200x faster)
Throughput 189K bootstraps/sec (8x H100 GPU) 2.17M auth/sec (CPU only)
GPU Required Yes (H100 for competitive perf) No (Graviton4 CPU)
Hardware Cost ~$15K/mo per coprocessor ~$2/hr spot
Python FHE Compiler
Compiler Concrete (@fhe.compiler) H33-Compile (@h33.compile)
Backend Targets 1 (TFHE) 4 (BFV-128, BFV-256, CKKS, BFV-32)
Auto-Routing No Yes (FHE-IQ)
Hybrid Circuits No Yes (auto-split across engines)
Type System Runtime tracing Compile-time type annotations
License BSD-3 + patent license required Apache 2.0
Built In C++/MLIR/Python Rust + PyO3
Zero-Knowledge Proofs
ZK Type ZKPoK (encryption correctness only) Lookup STARK + AIR STARK + STARK-IQ auto-router
Proves Computation No Yes (AIR STARK)
Proves Policy Compliance No Yes
Proof Generation 6.9 seconds 0.059µs cached (117,000,000x faster)
Post-Quantum Secure No (acknowledged) Yes (SHA3-256 hash-based)
Trusted Setup No No
Auto-Routing (Lookup vs AIR) N/A Yes (STARK-IQ)
Post-Quantum Signatures
Dilithium (ML-DSA) None ML-DSA-65/87 (FIPS 204)
Kyber (ML-KEM) None ML-KEM-768/1024 (FIPS 203)
FALCON None FALCON-512
SPHINCS+ None Yes
Nested Hybrid (3-Key) None Ed25519 + Dilithium + FALCON
Attestation Latency N/A 291µs per batch
End-to-End PQ FHE only (lattice) FHE + ZK + Signatures + KEM
Biometrics
Production Biometrics No (research demo only) Yes (production, batched)
Users per Ciphertext 1 (demo) 32 (SIMD batched)
Verification Latency Not benchmarked 967µs for 32 users
Server Sees Biometric Yes (demo uses FastAPI) Never
Template Storage Not optimized 256KB/user (128x reduction)
Blockchain & DeFi
Primary Chain Ethereum (fhEVM) Solana
Smart Contracts fhEVM library 10 production contracts
TPS ~20 (CPU) Solana-native
Biometric Wallet No Yes (FHE-encrypted SCIF wallet)
Soulbound Identity No Yes (NFT + biometric binding)
PQ Transaction Signing No (relies on ECDSA/Ed25519) Yes (Dilithium attestation layer)
Token Economics $ZAMA (5% inflation) H33 token (deflationary burn)
ML on Encrypted Data
ML Framework Concrete ML (sklearn, PyTorch, XGBoost) CKKS + FHE-IQ + AI-Blind + H33-Compile
Encrypted LLM Fine-Tuning Yes (LoRA-based) Via CKKS approximate arithmetic
Auto Engine Selection for ML No Yes (FHE-IQ routes to CKKS for float)
AI Security Agents None 3 native agents (0.52–1.14µs)
Side-Channel Protection “Not yet implemented” AI agent (1.14µs)
Security & Compliance
SOC 2 None In progress (100% via Drata)
HIPAA None Compliant
ISO 27001 None Audit ordered
HATS Certification N/A Author & issuing authority
HICS Code Standard N/A Open source (Apache 2.0)
Security Audit Trail of Bits (blockchain only) Full production audit
Side-Channel Mitigation “Not yet implemented” AI-based detection (1.14µs)
Products
Total Products 5 39
Product Categories 3 (FHE, compiler, blockchain) 14
Product List TFHE-rs, Concrete, Concrete ML, fhEVM, Zama Hub FHE (4 engines) · ZK (4 products) · PQC (5 sig schemes) · Biometrics (3) · Blockchain (4) · AI/ML (4) · Compliance (3) · Platform (6) · DevTools (3) · Compiler (1) · MPC (1) · Video (1) · Search (1) · Storage (1)
Pricing
Free Tier Research use only 1,000 credits + BotShield 2,500/mo
Commercial License Patent negotiation required Self-service API key
Per-Operation Cost $0.005–$1.00 (blockchain) $0.001 per auth (at scale)
Infrastructure Self-hosted (~$15K/mo) Managed API (no infra)
GPU Costs ~$30K+/year per H100 node $0 (CPU only)
Patent Fee Required for any commercial deployment None (Apache 2.0)
Developer Experience
API Style Library (self-host) REST API (managed)
Languages Rust, Python, C Any (REST API)
Setup Time Days (compile, configure, self-host) Minutes (API key)
FHE Parameter Expertise Required Not required (FHE-IQ handles it)
Documentation GitHub READMEs Full docs site at h33.ai/docs
Last updated: March 30, 2026

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