Google · Open weights

Gemma 4 31B Split-Untied

Added Sep 17, 2026Open weights

Blazed-Forge's Split-Untied is a text-only Gemma 4 31B community finetune with an untied BF16 output head, built for creative writing, roleplay, expressive dialogue, and tool use.

Tools

Input: Text
Output: Text
Discovery tier: Open weights

Pricing

USD per 1M tokens

Input: $0.10
Output: $0.30

Reference prices as published by the model provider. API example

Specifications

Context window: 262.1K
Max output: 32.8K

Side by side

Gemma 4 31B Split-Untied compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

Limits
	Gemma 4 31B Split-UntiedGoogleThis model	Qwen 3.8 27B AntislopQwenRemove
Provider	Google	Qwen
Discovery tier	Open weights	Open weights
Added	Sep 17, 2026	Oct 5, 2026
Context window	262.14K	262.14K
Max output	32.77K	32.77K
Average output	—	299 tokens
Pricing, USD per 1M tokens
Input	$0.10	$0.10
Output	$0.30Best	$0.60
Cache read	—	$0.05
Performance
Throughput	—	41.2 tok/s
Time to first token	—	2.1 s
Request success (24h)	99.7%Best	99.0%
Capabilities
Reasoning	No	Yes
Tools	Yes	Yes
Vision	No	Yes
Reasoning effort	—	—

Public evaluations

Benchmarks

There are no public benchmark results for these models yet.

Live routing data

Performance and reliability

Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.

Prompt cache hits: 0.0%
Request success (24h): 99.7%; Reliable

Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.

Hourly request success · last 72 hoursLowest hour 82.7%

Healthy (98% or more)
Degraded (90–98%)
Down (under 90%)
No requests

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart

curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemma4-31b-splituntied",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'

import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="google/gemma4-31b-splituntied",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

Google

Other Google models, starting with the same family.