Zyphra
zyphra.com
Actively hiring
AI Research Labs
Foundation Models
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News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$500M
1 round on record
Latest round
$500M
Venture round · May 2026 · 4 mo ago
Team
1-10
employees, estimated range
Hiring now
16
+2 posted in 30 days
Backers
2
Future Ventures, Meta Planet
The money's age
Fresh money
4 months since the last round · and hiring
Momentum
25/100
hiring for its size, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
May 19
Raised a round Venture round $500M
May 6
Launched Zyphra Releases ZAYA1-8B, a Reasoning Model trained on AMD and Optimized for Maximum Intelligence Density per Parameter · PRNewswire
May 4
Partnership Zyphra and AMD Partner to Power Zyphra Cloud on AMD Instinct MI355X GPUs · PRNewswire
Oct 14, 2024
On the Hacker News front page Zamba2-7B · 282 points
Jul 31, 2024
Launched Zyphra Launches Zamba2, An Efficient And Faster Small Language Model · forbes.com
Jun 7, 2024
Launched Zyphra debuts Zyda LLM training dataset with 1.3T tokens · SiliconANGLE
2021
Founded
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Hacker News stories
8
best: 282 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | May 2026 | $500M | — | forbes.com |
Backed byfrom the funds' portfolios and accelerator catalogs
Future Ventures 
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How Zyphra hires
Truth index
D 48/100
Ghost roles
88%
Stale roles
0%
Reposted roles
0%
Zyphra scores D on the Alion truth index (A is best, E worst), measured over 16 open roles re-checked against its own hiring board: 88% look like ghost listings, 0% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Overview
Zyphra is an artificial intelligence research company that develops open foundation models, including the Zamba hybrid state-space language models and the Zonos text-to-speech models, with a focus on efficient models that can run on device. It also offers a cloud platform for its models and researches brain-computer interface models. The company is headquartered in San Francisco, California, United States.
News
Report
Zyphra/ZAYA1-8B Hugging Face
We're on a journey to advance and democratize artificial intelligence through open source and open science.
Read more
Report
Zyphra Releases ZAYA1-8B, a Reasoning Model trained on AMD and Optimized for Maximum Intelligence Density per Parameter
/PRNewswire/ -- Zyphra today announced ZAYA1-8B, a mixture-of-experts (MoE) language model that matches or exceeds substantially larger open-weight models on...
Read more
Report
Zyphra and AMD Partner to Power Zyphra Cloud on AMD Instinct MI355X GPUs
/PRNewswire/ -- Zyphra today announced Zyphra Cloud, a full-stack AI platform that brings advanced innovations from Zyphra Research into production for...
Read more
Report
Zyphra/ZUNA Hugging Face
We're on a journey to advance and democratize artificial intelligence through open source and open science.
Read more
Report
AI research and product company Zyphra signs deal for large AMD MI300X cluster on IBM Cloud
Read more
Report
Zyphra's Zyda-2 dataset: 5T tokens released
Zyphra's Zyda-2 dataset is five times larger than the original Zyda and covers a vast range of topics and domains.
Read more
Report
Zyphra debuts Zyda LLM training dataset with 1.3T tokens
Zyphra debuts Zyda LLM training dataset with 1.3T tokens - SiliconANGLE
Read more
Report
Tech stack
Technologies named in job postings at Zyphra over the last 12 months, by layer, with the share of postings for each.
Technologies in use
66
Postings analysed
17
Stack modernity
77/100AI adopter
Languages
Python71%
JavaScript12%
SQL12%
TypeScript12%
Frameworks & libraries
PyTorch41%
CUDA12%
Playwright12%
Ray12%
Cloud & platforms
AWS18%
CUDA Toolkit12%
GCP12%
Kubernetes12%
AI & ML
Claude12%
LLM12%
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Full Zyphra tech stack
66 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
54/100
Stable
Open positions
16
0 opened / 1 closed in 30 days
Median time-to-fill
60 days
faster than 24% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
33% ▲
Backend
33% ▼
DevOps
33% ▲
Activity Timeline
Added Windows to stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added World Models to stack
Sep 2026
Added Agentic Workflows to stack
Sep 2026
Added Time Series Forecasting to stack
Aug 2026
Added Mixture of Experts to stack
Aug 2026
Added Speech Recognition to stack
Aug 2026
Added TPU to stack
Aug 2026
Added HPC to stack
Aug 2026
Added AWS Trainium to stack
Aug 2026
Added OCR to stack
Aug 2026
Added Text-to-Speech to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
San Francisco
San Francisco
United States
HQ
Join the team
16 open roles 3 posted in 90 days 81% engineering 1-10 est. staff
hires for AI/ML, DevOps, Data Science
415 Mission St, Floor 44, San Francisco, CA 94105
Jobs
≈ $127k – $283k per year (Estimated) • In office • Full-Time • San Francisco
Python
vLLM
CUDA Toolkit
SGLang
LLM
Ray
CUDA
TPU
InfiniBand
ROCm
Machine Learning
DevOps
Terraform
Ansible
GCP
Prometheus
SLURM
Azure
CI/CD
AWS
Docker
Kubernetes
Grafana
Telegraf
Linux
Management
Slack
Gmail
Apply
≈ $167k – $367k per year (Estimated) • In office • Full-Time • San Francisco
Python
Reinforcement Learning
Multimodal AI
AI Agents
PyTorch
Synthetic Data
Post-training
Computer Use
Machine Learning
Apply
≈ $153k – $320k per year (Estimated) • In office • Full-Time • Master's Degree • San Francisco
Cursor
Claude
Fine-tuning
Multimodal AI
AI Agents
Machine Learning
Apply
≈ $185k – $338k per year (Estimated) • In office • Full-Time • 3+ years exp • San Francisco
Cursor
Claude
Fine-tuning
AI Agents
Hugging Face
Machine Learning
DevOps
GitHub
Management
Slack
Discord
Apply
≈ $166k – $363k per year (Estimated) • In office • Full-Time • San Francisco
Python
Reinforcement Learning
PyTorch
RAG
Pre-training
Machine Learning
Apply
≈ $170k – $374k per year (Estimated) • In office • Full-Time • San Francisco
Python
Fine-tuning
Reinforcement Learning
PyTorch
Synthetic Data
DPO
SFT
Post-training
Machine Learning
Apply
≈ $165k – $361k per year (Estimated) • In office • Full-Time • San Francisco
Python
PyTorch
Pre-training
Machine Learning
Apply
≈ $167k – $365k per year (Estimated) • In office • Full-Time • San Francisco
Python
Diffusion Models
Speech Recognition
PyTorch
Text-to-Speech
Machine Learning
Apply
≈ $133k – $289k per year (Estimated) • In office • Full-Time • San Francisco
Python
Dask
AI/ML
Multimodal AI
PyTorch
Machine Learning
Apply
≈ $124k – $277k per year (Estimated) • In office • Full-Time • San Francisco
vLLM
SGLang
Ray
Triton
DevOps
Terraform
Ansible
GCP
SLURM
CI/CD
AWS
Docker
Kubernetes
Chaos Engineering
Apply
≈ $162k – $309k per year (Estimated) • In office • Full-Time • San Francisco
JavaScript
TypeScript
AI Agents
Frontend
React.js
Design
Figma
Apply
≈ $151k – $318k per year (Estimated) • In office • Full-Time • San Francisco
Python
Fine-tuning
Embeddings
Reinforcement Learning
AI Agents
RAG
OCR
Agentic Workflows
Machine Learning
Cybersecurity
SOC 2
GDPR
QA
Playwright
Apply
Financials
Total raised
$500M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2026 | $500M | Details |