Last refreshed 2026-10-09. Next refresh: weekly.
Why use FARE-20B on Fireworks AI?
Fireworks AI offers FARE-20B. Fireworks AI offers a generative AI platform as a service, focusing on rapid product iteration and cost-efficient AI deployment.
Setup recipe
Python + curlpip install openaiexport FIREWORKS_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],accounts/fireworks/models/fare-20bRequest example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],
base_url="https://api.fireworks.ai/inference/v1"
)
response = client.chat.completions.create(
model="accounts/fireworks/models/fare-20b",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "accounts/fireworks/models/fare-20b", not the LLMReference slug "fare-20b".
- Fireworks model IDs use "accounts/fireworks/models/{model-name}" format, e.g. "accounts/fireworks/models/llama4-scout-instruct-basic" or "accounts/fireworks/models/deepseek-r1".
- The examples expect FIREWORKS_API_KEY; rename it only if your application config maps the new variable.
Capabilities
No model capability flags are currently sourced.
About FARE-20B
FARE-20B is a multi-task evaluator model from Salesforce AI Research, fine-tuned from OpenAI's gpt-oss-20b and introduced in October 2025. It is trained with rejection-sampling fine-tuning on a large multi-domain dataset to act as a judge: comparing two responses, finding the first wrong step in a solution, verifying answers with or without a reference, and giving single ratings, using the prompt templates published with the model. Weights are on Hugging Face under CC BY-NC 4.0 (non-commercial). Fireworks offers it as an on-demand deployment with 131K context.