ZAYA1 Models by Zyphra

ZyphraApache 2.0Open source

1 model2026Up to 33k ctx

Last refreshed 2026-05-12. Next refresh: weekly.

Details

ResearcherZyphra

LicenseApache 2.0OSI-approved

Commercial useCommercial use: permitted

Models1

Released2026

Max context33k

Capabilities

ReasoningAll models

Links

Website HuggingFace

About

ZAYA1 is a family of 1 AI model by Zyphra, released in 2026.

Decision facts

Best fit: reasoningcodingmath-heavy prompts
Capability starting point: ZAYA1-8B with 33k context and reasoning
Lowest tracked input: Not tracked
Closest related family: Zamba

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

1 in view

ZAYA1-8BCurrent

Use when the workload needs reasoning, 33k context, and 8.4B parameters.

2026-05reasoning33k context8.4B parameters

Current ZAYA1 variants with use-when guidance and lifecycle status
Model	Use when	Released	Signals	Status
ZAYA1-8B	Use when the workload needs reasoning, 33k context, and 8.4B parameters.	2026-05	reasoning33k context8.4B parameters	Current

Release Timeline

1 release group

2026-05

1 current

ZAYA1-8B

reasoning33k context8.4B parameters

Current

Specifications(1 models)

ZAYA1 model specifications comparison
Model	Released	Context	Parameters	Reasoning
ZAYA1-8B	2026-05	33k	8.4B	Yes

Models(1)