Using Zephyr 7B Alpha on Replicate API

Implementation guide · Zephyr · Hugging Face H4

ServerlessOpen Source

Replicate API exposes Zephyr 7B Alpha through model ID joehoover/zephyr-7b-alpha. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-09-30. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at Replicate API and generate an API key.
  2. 2
    Use the Replicate API SDK or REST API to call joehoover/zephyr-7b-alpha — see the documentation for request format.
  3. 3
    You'll be billed $0.05/1M input, $0.25/1M output tokens. See full pricing.

Code Examples

Install
pip install replicate
API key
REPLICATE_API_TOKEN
Model ID
joehoover/zephyr-7b-alpha

Replicate uses "owner/model-name" format (e.g. "meta/meta-llama-3-8b-instruct") for the latest version, or "owner/model-name:version-sha" to pin to a specific version. The REST endpoint splits owner and model-name into the path: /v1/models/{owner}/{model-name}/predictions.

import replicate

# reads REPLICATE_API_TOKEN from env
# joehoover/zephyr-7b-alpha format: "owner/model-name" (latest version) or "owner/model-name:version-hash"
output = replicate.run(
    "joehoover/zephyr-7b-alpha",
    input={"prompt": "Hello"}
)
# Output is a list or generator depending on the model
print("".join(output))

Pricing on Replicate API

TypePrice (per 1M)
Input tokens$0.05
Output tokens$0.25

Capabilities

No model capability flags are currently sourced.

About Zephyr 7B Alpha

The Zephyr 7B Alpha is a 7-billion parameter language model fine-tuned from the Mistral-7B-v0.1 framework. It serves as an AI assistant, primarily optimizing its performance using Direct Preference Optimization. Although it excels in English text generation and conversational tasks, its training with a mix of public and synthetic datasets—like UltraChat and UltraFeedback—brings a higher risk of generating problematic content due to lesser alignment with human safety standards compared to models like ChatGPT. The model's architecture is GPT-like, offering several quantized versions such as GPTQ and GGUF, which trade-off model size for performance, but may affect accuracy.

Model Specs

Released2023-10-26
Parameters7B
ArchitectureDecoder Only

Provider

Replicate API

Replicate

San Francisco, California, United States