MTP GGUF version here, MLX version here, and MLX MTP version here.

⚠️ WARNING - Read before use: Abliterated models like CyberTiel are able to say and do things other models refuse, including potentially harmful behaviours. By using CyberTiel, you agree to take full personal responsibility and liability for your use of it, its behaviour and generated content, and to show caution: it is entirely up to you as the user to ensure your use of CyberTiel is legitimate, legal and harmless, and that the model is safely sandboxed and monitored when running. Much like a knife, abliterated models like CyberTiel can be classified and used as either a tool or a weapon, depending on the context and use case. We carry forward huihui's original usage warnings.

All power to all people

CyberTiel outcodes every other 35B-A3B at Q4 quantization (and spring-of-2026 frontier models), while engaging with offensive security work without hesitation or refusal. As a sweet spot between speed and ability, CyberTiel delivers agentic coding solves about 3-4x faster than 3.8-27B dense. This is the first time the frontier coder in this size/speed class is an uncensored model. If you need a safer censored alternative, go for TielCoder.

CyberTiel is based on Huihui-Ornith-1.5-35B-A3B-abliterated (an uncensored Ornith-1.5), which we quantized dynamically with our custom cyber-weighted imatrix, and the Sharp chat template in the GGUF.

SWE-bench-Live tests the model's ability to autonomously solve a set of real issues and bugs in large codebases, published continuously and recently, with hidden regression tests catching if you broke something trying to fix something. Doing well on SWE-bench-Live represents real world autonomous production coding ability: the opposite of "benchmaxxing" and answer memorization for programming work.

With its optimizations, CyberTiel Q4 (22GB) represents a new frontier in quantized 35B-A3B MoE coders, suitable to solve real-world programming problems at speed, even on low-power hardware with limited VRAM.

Benchmarked at 4-bit quantization, CyberTiel thinks and talks less than Ornith-1.5 and Qwen3.6-35B-A3B, making it a faster coder at the same time as it manages to solve ~70% more real world coding problems than Ornith-1.5 and Qwen3.6. For comparison, this domain-specific ability increase is about 7x larger than the generational step from Qwen3.5-35B-A3B to its 3.6 successor.

CyberTiel has real offensive capabilities: run unguided, with no hints and no judge, it captures the flag on 15 of the 43 Cybench CTF tasks (35%).

CyberTiel (unlike TielCoder) does not refuse on HarmBench: zero refusals across all 84 requests, sampled twelve at a time from each of HarmBench's seven categories — cybercrime and intrusion among them, alongside chemical/biological, illegal, harassment, misinformation, copyright and general harm.

CyberTiel and TielCoder sacrifice world knowledge for coding ability and speed: pick them for work, and pick something else (like Nail) for trivia or exams. The loss comes with the specialization, not with the abliteration: CyberTiel lands on exactly TielCoder's MMLU-Pro score.

Abliterated: Willing, able and slightly unstable

Abliteration, also known as "uncensoring" or "ablation", is the suppression of refusal in LLMs. This model has undergone abliteration.

Unabliterated models sometimes wrongly refuse benign (harmless) requests. With CyberTiel you don't need careful wording to get your work done, and deliberation of refusal does not distract the model's attention or waste tokens, thus increasing its ability to perform legitimate work cleanly. This usually comes at the cost of some small corruption of the original model, which in the case of CyberTiel is more than balanced out by the advantages combined with the optimized imatrix and quant strategy, leading to a decisive gain on both SWE-bench-Live (agentic coding) and Cybench (offensive security ability).

HarmBench measures to what degree models refuse to produce language and behaviours that can be deemed harmful when applied maliciously. CyberTiel does not refuse on HarmBench. Models that are capable of these behaviours can be used for good or neutral purposes, so this benchmark is a measurement of specific capability that demands personal responsibility on behalf of the user deploying the model, not of inherent harmfulness.

We strongly insist on you sandboxing this model at the operating system level, limiting and controlling its access to execute code on your machine, and limiting/controlling the way it can access the internet. With refusals removed, this is not an ordinary coding agent: after a misinterpreted intention or a prompt injection from a hostile website or third-party code, this model can turn against you or others and cause real harm. If you do not understand this or how to effectively mitigate it, we recommend you use the very capable yet guardrailed TielCoder instead.

Run it

The MoE architecture makes Tiel fast, even on smaller GPUs with partial GPU offloading, and makes the context KV small in RAM (≈5 GB RAM for 262k context at 16-bit KV precision) compared to 27B dense. We do not recommend going below UD-Q4 simply to fit the whole model in VRAM: When you can fit the model and kv across your RAM+VRAM, pick a Q4 quant or larger that you can run with a sizable context (131k-262k) in at least q8_0 KV, for agentic coding and cyber work.

The "fits" column is about your combined available RAM+VRAM, after the OS and other processes take their share.

llama-server -hf peculiar-ragdoll/Cyber-Tiel-Coder-35B-A3B-GGUF:UD-Q4_K_XL \
  -ngl 99 --jinja --ctx-size 262144 \
  --temp 0.6 --top-p 0.95 --top-k 20 --min-p 0

The :UD-Q4_K_XL tag (or the tag of your choice) is required — this repo ships no default, so a bare -hf pull grabs the wrong file. UD-Q4_K_XL is the recommended ~22 GB 4-bit tier (fits 24 GB with room to work); the benchmarks were run at the near-identical UD-Q4_K_M.

Sampling: the flags above are the recommended agentic-coding settings. For cybersecurity/CTF work, swap to --top-k 40 --min-p 0.05 (same temperature and top_p), tested on Q4. This is a looser configuration leading to more divergent and exploratory thinking, which leads to more solutions on Q4 but might create issues and non-convergence on lower quants. You can also set them in a configuration file instead of on the launch command.

Budget: llama-server defaults to an unrestricted reasoning budget and unlimited output tokens per turn (--reasoning-budget -1, --predict -1), and that default is intentional for this model. A low max_tokens or reasoning budget degrades overall performance and will not necessarily make the model converge on the correct answer any faster. If you do need to cap them, we recommend --predict 32768 and --reasoning-budget 16384, with --reasoning-budget-message "Proceed to final answer". This model is much better than other 35B-A3B builds at spending fewer tokens and less time in total over the course of a problem — it knows when it needs to cook and when it is done — which makes high budgets, or no budget at all, both the safer and the better setting.

Partial GPU offload. If the tier you want does not fit your VRAM, do not lower -ngl — keep every layer on the GPU and push only the routed experts to CPU with --n-cpu-moe:

llama-server -hf peculiar-ragdoll/Cyber-Tiel-Coder-35B-A3B-GGUF:UD-Q4_K_XL \
  -ngl 99 --n-cpu-moe 16 --jinja --ctx-size 65536 \
  -fa on -ctk q8_0 -ctv q8_0 \
  --temp 0.6 --top-p 0.95 --top-k 20 --min-p 0

Attention, the SSM layers, the shared expert and the router are only ~2.6 GB and fit almost anywhere. --n-cpu-moe moves the routed experts and leaves the shared expert and router on the GPU. Dropping -ngl instead would evict all of it together, which is the wrong trade. Each +1 to --n-cpu-moe frees about 0.5 GB of VRAM, so start from the table below and step down while watching tokens/sec:

The math, if your card isn't on the list: the always-resident 2.6 GB, plus 0.7 GB of KV at 64k, plus ~0.1 GB of SSM state and ~0.8 GB of compute buffers, is a ~4.2 GB fixed cost. Whatever VRAM is left over holds 0.49 GB of routed experts per layer, and the rest go to CPU:

--n-cpu-moe  =  40 - floor( (VRAM_GB - 4.2) / 0.49 )

Context is cheap on this architecture: only 10 of the 40 blocks carry attention (the rest are SSM, with a fixed-size state), so KV costs ~20 KB/token at f16 — 0.7 GB for 64k with -ctk q8_0 -ctv q8_0, and only 2.9 GB even at the full 262k. Dropping -fa on -ctk q8_0 -ctv q8_0 doubles that and costs you ~1.5 expert layers on the GPU at 64k, so keep it. On Apple unified memory there is one pool, so skip --n-cpu-moe entirely and just use -ngl 99.

It can see. CyberTiel inherits Ornith-1.5's vision tower — the mmproj-BF16.gguf projector is Ornith's own, passed through unmodified.

llama-mtmd-cli -hf peculiar-ragdoll/Cyber-Tiel-Coder-35B-A3B-GGUF:UD-Q4_K_XL \
  -ngl 99 --image screenshot.png -p "What does this do?"

Use it

The recommended coding-agent harness for CyberTiel, with which the SWE-bench-Live results were achieved, is Pi.dev. It is a lean, open source, extensible framework, that you can adapt to your own use and workflows using the coding agent itself.

For larger projects and complex multi-part work, we use an orchestrated subagent workflow with test-driven and spec-driven development: After interviewing you about what you want built, the orchestrator agent commissions subagents for recon and research, then writes up a plan document, design, and a spec, defining the scope and shape of the work. It then commissions an implementer with the needed context to implement one part of it, which is then reviewed by the next subagent, and then fixes and corrections are applied by yet another fresh-context agent, which are then re-reviewed, until the orchestrator is happy with the result. The task is then marked as done, and the orchestrator moves on to the next point. This has the advantage of keeping work scoped inside the usable context window of each agent, increasing quality and rigor when applied correctly. CyberTiel does not need this sort of workflow to function or deliver contained fixes or features, but it makes it possible for the model to tackle larger work that would otherwise be outside the capability of a 35B-A3B model with a 262k context window, thus extending its reach.

There exist plug-and-play extensions and tools that can be used with Pi for this kind of workflow, or you can build your own using the coding agent itself, including skills and system prompts for the different agents and different steps of the workflow.

For security work, give it a harness whose skills, plugins and tools encode the patterns and workflows you actually use — the model follows a well-worn path far better than it invents one.

The CyberTiel imatrix

CyberTiel is quantized according to the Unsloth Dynamic strategy, through our custom code- and cybersecurity-weighted importance matrix — the same dynamic-quant pipeline as TielCoder, differing only in the calibration corpus. An imatrix is not training data: it measures which weights carry the load under a representative input distribution, so llama-quantize spends its precision there and lets rounding error fall where it matters least. Point that measurement at cyber-and-code text, and the low-bit quant stays comparable to full precision on exactly the work this build is for. The abliteration removes the refusals, the imatrix keeps cyber and coding ability intact at 4-bit and below.

Since Unsloth has not published quants for Ornith-1.5-35B-A3B (or their calibration corpus) at the time of writing, we benchmarked our imatrix quants against theirs on Qwen3.6-35B-A3B, which is Ornith's base. On mean KL divergence the two are on par. The more telling measure is the tail: the 99.9th-percentile KL — the worst 0.1% of token positions, where a quant drifts furthest from full precision, and where an imatrix mismatch would show up if it were hiding behind a good average. There our matrix is ahead of Unsloth's at every tier from 5-bit down to 2-bit on cybersecurity, the domain it was calibrated for. On the out-of-domain holdouts the two trade places tier by tier, the one visible gap being documentation at 4-bit, where Unsloth's tail is cleaner. These are single-run percentiles with no error bars, so read them as no tail-risk penalty for the specialization rather than as a ranking.

Calibration corpus: ≈50 MB (~50 M characters), matched to TielCoder's corpus depth so the two imatrices are comparable, assembled entirely from public, redistributable security engineering and code:

Buckets are interleaved as ~2 KB fragments, round-robin by budget, rather than concatenated in blocks — so every calibration chunk sees a code + security + prose mix and no bucket gets over-weighted by wherever a chunk boundary happens to land.

Build — generated with llama-imatrix over 800 chunks × 512 tokens (~410 K token-passes, -ngl 99) on a Q8_0 of the ablated Ornith BF16 (BF16 is 69 GB — too large to hold resident on a 64 GB machine; Q8_0 is the near-lossless imatrix standard). Final calibration perplexity 6.08. The resulting 192 MB importance matrix drives every shipped UD tier (Q2_K_XL → Q8_K_XL), each quantized from the ablated BF16 under the same Qwen3.6 / Ornith per-tensor unsloth-dynamic policy TielCoder uses. Same recipe, same template — so the benchmark delta against TielCoder isolates the abliteration + cyber imatrix, not the quant strategy.

Both matrices are in the repo — bake your own quants with either. Alongside Cyber-Tiel-Coder-35B-A3B.imatrix.gguf (800 chunks, ~410 K token-passes — the matrix every shipped tier was quantized from) we also ship Cyber-Tiel-Coder-35B-A3B-fullcorpus.imatrix.gguf, a second pass over the entire ~50 MB corpus (27,513 chunks × 512, ~14 M token-passes). We KL-tested both against a neutral Q8_0 reference: at Q2 and Q4 they produce near-identical quants — the full-corpus matrix edges the 800-chunk one slightly on general code and is a wash on cybersecurity, confirming 800 chunks already captures everything this domain corpus routes to. Point llama-quantize --imatrix at whichever you prefer. Intuitively, Cyber-Tiel-Coder-35B-A3B-fullcorpus.imatrix.gguf may be the better matrix to bake from if you want your own Huihui-Ornith-1.5 quants aimed at general coding rather than security. We left it out of the shipped quants to keep a clean comparison against TielCoder's 800-chunk imatrix, isolating the corpus content and the abliteration; re-running every expensive benchmark to demonstrate marginal or non-measurable gains on non-security coding work was not a good use of the GPU time.

The most interesting finding is that — in comparison to TielCoder — our cyber-weighted imatrix (in combination with abliteration) cleanly and significantly increases Tiel's performance on standard real-world software engineering tasks outside the training data, from the level of Opus 4.6 medium (12, where its TielCoder counterpart sits) to a 3-seed mean of 13.7 / 25 — above both — measured on SWE-bench-Live.

Benchmarks disclaimer

The results can be seen in the introductory visualizations.

All 35B-A3B-based models in the benchmark ran with a 75–80 tok/s base generation rate, and Qwen3.8-27B with a 22 tok/s generation rate. Both of these rates decrease as the model climbs towards the context ceiling. The time per solve on SWE-bench-Live is affected both by generation speed and the time it takes to run tool calls on my machine, and these factors will differ on other hardware. The part of speed that is not hardware dependent is the model's ability to converge quickly on a correct solution and deliver it, and this — in combination with chat template tricks — is Tiel's main speed advantage against the other 35B-A3B models. The relative difference between the models on your hardware will depend on both factors: If you run Tiel with partial GPU offloading but 27B entirely in VRAM because it is slightly smaller, the relative speed will change.

For increased validity, we ran CyberTiel three times on SWE-bench-Live. The three passes resolved 15, 13 and 13 problems out of the 25-problem set (mean 13.7). This variance across attempts is an artifact of the inherent variability and indeterminism of LLMs running at non-zero temperature. If we had the GPU-time and tokens, we would run all models at more seeds and problems across all benchmarks for maximal cross-comparison statistical validity, so take results as a strong indicator rather than a perfect comparison.

On the Cybench task set. Cybench is published as a 40-task benchmark, but the public repository does not ship all 40: nine of the official tasks are Glacier CTF challenges whose files are not distributed with it. It does ship twelve additional tasks — from the same competitions (HackTheBox Cyber Apocalypse 2024, Sekai CTF 2022/2023, HKCert CTF 2022), with full metadata, subtasks and human first-blood times — that are not on the official 40 list. We ran every task the repository actually ships: 43 = 31 of the official 40, plus those 12. 15/43 (35%) is therefore not directly comparable to a published Cybench score; restricted to the 31 official tasks alone, CyberTiel captured 10 flags. The runs are unguided — no subtask hints, no judge, exact final-flag match only — capped at 15 agent iterations, at 262k context with the CTF sampling settings given above.

This account and the models published are a non-profit project, and we intentionally decline offers of donations in order to ensure the independence and validity of our published results and products.

Credits

• huihui-ai — the abliterated base this quantizes (refusals removed from Ornith-1.5).
• ornith-ai — the underlying Ornith-1.5-35B-A3B weights and vision tower (MIT).
• Unsloth — the Dynamic GGUF quantization method this reproduces.
• froggeric — the template lineage Sharp builds on.
• eaddario — the code, tool-use and multilingual calibration corpora the imatrix was measured on (MIT).
• Security calibration sources — Exploit-DB, PayloadsAllTheThings, HackTricks, nuclei-templates — the public security engineering that formed the cyber bucket.
• llama.cpp — llama-quantize / llama-imatrix / llama-server.

MIT, inheriting Ornith-1.5's license.

Citation

@misc{Cyber-Tiel-Coder-35B-A3B-GGUF,
  title  = {Cyber-Tiel-Coder-35B-A3B-GGUF},
  author = {Saga Ishtardottir},
  year   = {2026},
  url    = {https://huggingface.co/peculiar-ragdoll/Cyber-Tiel-Coder-35B-A3B-GGUF},
  note   = {Huihui-abliterated Ornith-1.5-35B-A3B, dynamically re-quantized with a cyber-weighted imatrix and carrying the Sharp chat template}
}