Google · Open weights
Gemma 4 26B A4B Chimera X Heretic
Chimera X Heretic is a Gemma 4 26B A4B multimodal mixture-of-experts fine-tune for creative writing, expressive dialogue, and roleplay.
- Reasoning
- Tools
- Vision
- Input
- Text, Images
- Output
- Text
- Discovery tier
- Open weights
Pricing
USD per 1M tokens- Input
- $0.12
- Output
- $0.38
- Cache read
- $0.06
Reference prices as published by the model provider. API example
Specifications
- Context window
- 262.1K
- Max output
- 32.8K
- Average output (7 days)
- 315 tokens
- Longer than 34% of 473 models
Side by side
Gemma 4 26B A4B Chimera X Heretic compared
Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.
| Gemma 4 26B A4B Chimera X HereticGoogleThis model | Gemma 4 31B ScarletGoogleRemove | |
|---|---|---|
| Provider | ||
| Discovery tier | Open weights | Open weights |
| Added | Oct 8, 2026 | Oct 8, 2026 |
| Limits | ||
| Context window | 262.14K | 262.14K |
| Max output | 32.77K | 32.77K |
| Average output | 315 tokens | 456 tokens |
| Pricing, USD per 1M tokens | ||
| Input | $0.12 | $0.10Best |
| Output | $0.38Best | $0.45 |
| Cache read | $0.06 | $0.05Best |
| Performance | ||
| Throughput | 72.7 tok/sBest | 15.5 tok/s |
| Time to first token | 2.2 sBest | 8.5 s |
| Request success (24h) | 97.7%Best | 94.1% |
| Capabilities | ||
| Reasoning | Yes | Yes |
| Tools | Yes | Yes |
| Vision | Yes | 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.
- Throughput
- 72.7 tok/s
- Faster than 53% of 260 models
- Time to first token
- 2.2 s
- Quicker than 70% of 260 models
- Prompt cache hits
- 24.4%
- About $0.11 per 1M input tokens with caching
- Request success (24h)
- 97.7%
- 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.
- 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.
curl https://www.noumen.xyz/api/v1/chat/completions \
-H "Authorization: Bearer $NOUMEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemma-4-26b-a4b-it-chimeraxheretic",
"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="gemma-4-26b-a4b-it-chimeraxheretic",
messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)Related models
Other Google models, starting with the same family.
