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heabsy · Frontier

CyberHeabsy

Added Sep 27, 2026

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Use in the app

A low-refusal text model for authorized security research, roleplay, and creative writing. It preserves tool calling after refusal removal, supports optional reasoning, and has a 1M-token context window.

  • Reasoning
  • Tools
Input
Text
Output
Text
Reasoning effort
none · low · medium · high
Discovery tier
Frontier

Pricing

USD per 1M tokens
Input
$1.50
Output
$4.50
Cache read
$0.28

Reference prices as published by the model provider. API example

Specifications

Context window
1M
Max output
65.5K
Average output (7 days)
1.3K tokens
Longer than 81% of 473 models

Side by side

CyberHeabsy compared

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

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CyberHeabsyheabsyThis modelGPT 5.3 CodexOpenAIRemove
ProviderheabsyOpenAI
Discovery tierFrontierFrontier
AddedSep 27, 2026Feb 24, 2026
Limits
Context window1.05MBest400K
Max output65.54K128KBest
Average output1.3K tokens281 tokens
Pricing, USD per 1M tokens
Input$1.50Best$1.75
Output$4.50Best$14.00
Cache read$0.28$0.18Best
Performance
Throughput63.5 tok/s—
Time to first token0.9 s—
Request success (24h)99.1%Best98.4%
Benchmark indexes
Intelligence Index—32.5
Capabilities
ReasoningYesYes
ToolsYesYes
VisionNoYes
Structured outputNoYes
PDF inputNoYes
Reasoning effortnone, low, medium, highlow, medium, high, xhigh

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • CyberHeabsy
  • GPT 5.3 Codex

Intelligence Index

  • CyberHeabsy—
  • GPT 5.3 Codex32.5
3.8Catalog models by score55.1

Agentic work

  • AA-Briefcasev1.1

    Agentic knowledge work, rated head to head

    • CyberHeabsy: —
    • GPT 5.3 Codex: 868 Elo

Document reasoning

  • AA-LCRv1.1

    Reasoning across long documents

    • CyberHeabsy: —
    • GPT 5.3 Codex: 83.3%

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • CyberHeabsy: —
    • GPT 5.3 Codex: 42.5%
  • GPQA Diamond

    Graduate-level science questions

    • CyberHeabsy: —
    • GPT 5.3 Codex: 91.5%
  • IFBench

    Following precise output instructions

    • CyberHeabsy: —
    • GPT 5.3 Codex: 75.4%

Legacy evaluations

  • Terminal-Bench Hard

    Earlier terminal task suite

    • CyberHeabsy: —
    • GPT 5.3 Codex: 53.0%
  • τ²-Bench Telecom

    Tool use in a customer-support simulation

    • CyberHeabsy: —
    • GPT 5.3 Codex: 86.0%
  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • CyberHeabsy: —
    • GPT 5.3 Codex: 83.3%

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

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
63.5 tok/s
Faster than 42% of 257 models
Time to first token
0.9 s
Quicker than 96% of 257 models
Prompt cache hits
8.3%
About $1.40 per 1M input tokens with caching
Request success (24h)
99.1%
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 0.0%
  • 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": "heabsy/cyberheabsy",
    "reasoning_effort": "medium",
    "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="heabsy/cyberheabsy",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

heabsy

Other heabsy models, starting with the same family.