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Agents-A1 GGUF Quants

Name: Agents-A1-GGUF
Availability: InStock

High quality GGUF quantizations of InternScience/Agents-A1, a 35B Qwen3.5-MoE agent model.

These files were produced from the BF16 Hugging Face checkpoint with a patched llama.cpp build that supports the qwen35moe architecture. The calibration pass used an importance matrix built from coding/instruction chat data, then each quant was benchmarked against the BF16 GGUF reference.

Recommended Files

Use case	File	Notes
Best small general-purpose quant	`agents-a1-IQ4_XS.gguf`	Strong quality for size, broad llama.cpp compatibility.
Best single-user MTP throughput	`agents-a1-IQ4_XS-MTP-graft-headQ6.gguf`	IQ4_XS body with Q6_K MTP block; measured 1.22x over target-only in c1/128 chat serving.
Highest MTP acceptance in this run	`agents-a1-Q4_K_M-MTP-graft-headQ6.gguf` with `SPEC_DRAFT_N_MAX=1`	91.46% draft acceptance while still 1.15x over target-only.
Safer MTP quality step up	`agents-a1-Q5_K_M-MTP-graft-headQ6.gguf`	Q5_K_M body with the same integrated Q6_K/F32 MTP block; structurally validated, not re-profiled yet.
Vision / image input for Q4+ quants	`mmproj-agents-a1-bf16.gguf`	Shared BF16 Qwen3VL mmproj for IQ4_XS, Q4_K_M, Q5_K_M, Q6_K, Q8_0, NVFP4, and the MTP variants.
Fast Blackwell FP4 path	`agents-a1-NVFP4.gguf`	Tested on RTX PRO 6000 Blackwell. Requires runtime support for `GGML_TYPE_NVFP4`.
Safer quality step up	`agents-a1-Q5_K_M.gguf`	Lower KLD than IQ4_XS with larger size.
Closest to BF16 by KLD	`agents-a1-Q6_K.gguf`	Best KLD in this eval set.
High precision archival quant	`agents-a1-Q8_0.gguf`	Largest quantized file.

Files

Quant	File size	Notes
Q3_K_M	16.76 GB	Smallest included quant.
IQ4_XS	18.73 GB	Recommended compact quant.
IQ4_XS-MTP-graft-headQ6	19.42 GB	IQ4_XS body plus integrated Q6_K/F32 MTP block.
NVFP4	19.72 GB	Blackwell-oriented FP4 GGUF, output head kept at Q6_K by quality rule.
Q4_K_M	21.17 GB	Standard K-quant.
Q4_K_M-MTP-graft-headQ6	21.86 GB	Q4_K_M body plus integrated Q6_K/F32 MTP block.
Q5_K_M	24.73 GB	Strong quality/size tradeoff.
Q5_K_M-MTP-graft-headQ6	25.42 GB	Q5_K_M body plus integrated Q6_K/F32 MTP block.
Q6_K	28.51 GB	Lowest mean KLD in this run.
Q8_0	36.90 GB	Highest precision quant.
mmproj BF16	0.90 GB	Shared Qwen3VL vision encoder/projector for Q4-class and higher text GGUFs.

Metrics

Hardware and runtime profile:

GPU: single NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation Edition, full offload
llama.cpp flags: -ngl 99 -sm none -fa on -p 512 -n 128 -b 4096 -ub 512 -r 3
PPL: llama-perplexity, context 2048, 64 rendered eval conversations, 3 chunks
KLD: approximate KL(P_BF16 || P_quant) over top-64 next-token distributions on 32 prompts

The PPL eval is intentionally small, so treat PPL deltas as directional. KLD and top-1 agreement are more useful here for quant-to-BF16 comparison.

Model	Size GB	Prompt tok/s	Gen tok/s	PPL	PPL delta	KLD mean	KLD p95	Top-1 match
BF16 reference	69.38	3418.9	161.8	1.3031	0.0000	0.0000	0.0000	32/32
Q3_K_M	16.76	6779.5	269.0	1.3101	+0.0070	0.0655	0.2155	28/32
IQ4_XS	18.73	7719.5	258.1	1.3038	+0.0007	0.0151	0.0654	29/32
NVFP4	19.72	9064.0	265.1	1.3063	+0.0032	0.0420	0.1473	31/32
Q4_K_M	21.17	7230.8	262.6	1.3016	-0.0015	0.1225	0.3349	27/32
Q5_K_M	24.73	7021.4	257.9	1.3041	+0.0010	0.0091	0.0335	30/32
Q6_K	28.51	6294.0	244.6	1.3040	+0.0009	0.0049	0.0178	32/32
Q8_0	36.90	7431.3	222.7	1.3036	+0.0005	0.0053	0.0063	30/32

Charts

Raw metric files are in metrics/; KLD reports, checksums, and the MTP audit are in reports/.

MTP Variants

The upstream Agents-A1 checkpoint used for the first GGUF release advertises MTP in config but does not ship mtp.*/blk.40.* tensors. The MTP variants here graft in the Agents-A1 MTPLX MTP sidecar from wang-yang/Agents-A1-MTPLX-Q4. The dense MTP block is preserved at Q6_K/F32 while the model body remains quantized to IQ4_XS, Q4_K_M, or Q5_K_M.

The Q5_K_M MTP artifact reuses the validated Q5_K_M body tensors and the same Q6_K/F32 blk.40.* MTP block, with GGUF metadata updated to qwen35moe.block_count=41 and qwen35moe.nextn_predict_layers=1.

Structural checks for the integrated MTP GGUFs:

Check	Value
GGUF tensors	753
`qwen35moe.block_count`	41
`qwen35moe.nextn_predict_layers`	1
`blk.40.*` MTP tensors	20
`blk.40.nextn.*` tensors	4

Single-user serving profile: one RTX PRO 6000 Blackwell Max-Q 96 GB GPU, PARALLEL=1, CTX_SIZE=8192, streaming chat completions, 12 requests, 128 max tokens, temperature=0, top_p=1.

Quant	Mode	Aggregate tok/s	Speedup vs target-only	Draft acceptance	Mean accepted length	Acceptance by position
IQ4_XS-MTP	target-only	224.59	1.00x	n/a	n/a	n/a
IQ4_XS-MTP	`draft-mtp`, `n_max=2`	275.03	1.22x	76.51%	2.52	`(0.830, 0.692)`
IQ4_XS-MTP	`draft-mtp`, `n_max=1`	259.58	1.16x	86.47%	1.86	`(0.865)`
Q4_K_M-MTP	target-only	230.48	1.00x	n/a	n/a	n/a
Q4_K_M-MTP	`draft-mtp`, `n_max=2`	273.80	1.19x	77.18%	2.53	`(0.847, 0.687)`
Q4_K_M-MTP	`draft-mtp`, `n_max=1`	264.88	1.15x	91.46%	1.91	`(0.915)`

agents-a1-Q5_K_M-MTP-graft-headQ6.gguf is structurally validated but has not been re-profiled for throughput or draft acceptance yet.

Recommended low-latency/single-user throughput profile: SPEC_DRAFT_N_MAX=2. Recommended high-acceptance fallback: SPEC_DRAFT_N_MAX=1.

Detailed MTP evidence is in:

reports/agents-a1-mtp-q4-profile-summary.md
reports/agents-a1-mtp-q4-profile-summary.json
reports/agents-a1-q5-mtp-build-report.json
configs/mtp_profiles.yaml

Usage

Example with the recommended compact quant:

bash

llama-server \
  -m agents-a1-IQ4_XS.gguf \
  -ngl 99 \
  -c 8192 \
  -b 4096 \
  -ub 512 \
  --flash-attn on

NVFP4 example:

bash

llama-server \
  -m agents-a1-NVFP4.gguf \
  -ngl 99 \
  -c 8192 \
  -b 4096 \
  -ub 512 \
  --flash-attn on

The NVFP4 artifact is a standard GGUF using the NVFP4 tensor type, but runtime support is still newer and less universal than K-quants or IQ4_XS. It was tested on a Blackwell GPU with a llama.cpp build reporting BLACKWELL_NATIVE_FP4 = 1.

MTP example:

bash

LLAMA_SPEC_MAX_DRAFTING_SLOTS=1 \
LLAMA_MTP_FAST_BACKEND_SAMPLE=1 \
LLAMA_MTP_DRAFT_TOP_K=1 \
LLAMA_MTP_DRAFT_TOP_P=1 \
LLAMA_MTP_DRAFT_TEMP=1 \
llama-server \
  -m agents-a1-IQ4_XS-MTP-graft-headQ6.gguf \
  -ngl 99 \
  -c 8192 \
  -b 4096 \
  -ub 512 \
  --flash-attn on \
  --reasoning off \
  --spec-type draft-mtp \
  --spec-draft-n-max 2 \
  --spec-draft-n-min 0 \
  --spec-draft-backend-sampling

For the high-acceptance profile, change --spec-draft-n-max 2 to --spec-draft-n-max 1. The same command shape applies to agents-a1-Q4_K_M-MTP-graft-headQ6.gguf and agents-a1-Q5_K_M-MTP-graft-headQ6.gguf.

Vision / mmproj

The release includes one shared multimodal projector:

mmproj-agents-a1-bf16.gguf
processor_config.json
preprocessor_config.json
video_preprocessor_config.json

The mmproj was converted from the original InternScience/Agents-A1 Hugging Face checkpoint with llama.cpp convert_hf_to_gguf.py --mmproj --outtype bf16. It contains the Qwen3VL vision tower/projector and is independent of the text quantization level, so the same file is intended for Q4-class and higher text GGUFs:

agents-a1-IQ4_XS.gguf
agents-a1-IQ4_XS-MTP-graft-headQ6.gguf
agents-a1-NVFP4.gguf
agents-a1-Q4_K_M.gguf
agents-a1-Q4_K_M-MTP-graft-headQ6.gguf
agents-a1-Q5_K_M.gguf
agents-a1-Q5_K_M-MTP-graft-headQ6.gguf
agents-a1-Q6_K.gguf
agents-a1-Q8_0.gguf

Q3_K_M may load with the same mmproj, but it is not the recommended vision profile because image tasks are more sensitive to text-model quantization.

Example with llama.cpp's multimodal CLI:

bash

llama-mtmd-cli \
  -m agents-a1-Q4_K_M.gguf \
  --mmproj mmproj-agents-a1-bf16.gguf \
  --image image.jpg \
  -p "Describe the image." \
  -ngl 99 \
  -c 4096 \
  -b 1024 \
  -ub 256 \
  --chat-template chatml \
  --image-min-tokens 1024 \
  --flash-attn on

If your llama.cpp llama-server build has multimodal support enabled, the same mmproj can be passed with --mmproj mmproj-agents-a1-bf16.gguf.

Local smoke test:

Text GGUF	Image	Prompt	Expected	Answer	Verified
`agents-a1-Q4_K_M.gguf`	llama.cpp `tools/mtmd/test-1.jpeg`	`Look at the newspaper image. What is the main headline? Answer only with the headline text.`	`MEN WALK ON MOON`	`MEN WALK ON MOON`	true

Verification report: reports/mmproj-q4km-actual-image-verify.json.

MTP Status

The original upstream snapshot remains config-only for MTP; see reports/mtp-weights-audit.json. The new *-MTP-graft-headQ6.gguf files are true integrated MTP GGUFs built from the Agents-A1 MTPLX MTP sidecar.

Provenance

Base model: InternScience/Agents-A1
License: Apache-2.0, inherited from the base model
Quantization source: BF16 GGUF converted from the Hugging Face checkpoint
MTP source: wang-yang/Agents-A1-MTPLX-Q4 sidecar grafted onto the base Agents-A1 checkpoint
Calibration: coding/instruction chat data rendered with the model chat template
Quantizer: patched llama.cpp with Qwen3.5-MoE and NVFP4 support

LordNeel/Agents-A1-GGUF

Agents-A1 GGUF Quants

Recommended Files

Files

Metrics

Charts

MTP Variants

Usage

Vision / mmproj

MTP Status

Provenance

LordNeel/
Agents-A1-GGUF