Project AURIONAI Use-Cases Research & Innovation
DeepSeek
LLM

DeepSeek-V3.1-Terminus

Update of DeepSeek-V3.1 with better language consistency and stronger code and search agents.

Benchmark table comparing DeepSeek-V3.1 with V3.1-Terminus.
Levelmodel
ClassLLM
Parametersnot in the notes
Contextnot in the notes
Released22 Sep 2025
Opennessopen weights permissive
Runs onnot in the notes
Statusactive

Benchmark Results

vendor-reported
BrowseCompagents and tool use
Model card comparison table; mode not statedvendor-reported
38.5
050100

Score in %. Higher is better.

DeepSeek-V3.1-Terminus model card22 Sep 2025 huggingface.co
GPQA Diamondknowledge and reasoning
Model card comparison table; mode not statedvendor-reported
80.7
050100

Score in %. Higher is better.

DeepSeek-V3.1-Terminus model card22 Sep 2025 huggingface.co
Model card comparison table; mode not statedvendor-reported
74.9
050100

Score in %. Higher is better.

DeepSeek-V3.1-Terminus model card22 Sep 2025 huggingface.co
MMLU-Proknowledge and reasoning
Model card comparison table; mode not statedvendor-reported
85
050100

Score in %. Higher is better.

DeepSeek-V3.1-Terminus model card22 Sep 2025 huggingface.co
Model card comparison table; mode not statedvendor-reported
57.8
050100

Score in %. Higher is better.

DeepSeek-V3.1-Terminus model card22 Sep 2025 huggingface.co
Model card comparison table; mode not statedvendor-reported
68.4
050100

Score in %. Higher is better.

DeepSeek-V3.1-Terminus model card22 Sep 2025 huggingface.co
Where this comes from
Every score names who ran it: vendor-reported, maintainer-run or independent. A rank is shown with the population it was ranked in (gap rule 3).

Lineage

successorcontinued pretrain
DeepSeek-V3.1 to DeepSeek-V3.1-Terminus: successor, high confidenceDeepSeek v3 to DeepSeek-V3.1: continued pretrain, high confidenceDeepSeek v3DeepSeek v3DeepSeek, Dec 2024DeepSeek-V3.1DeepSeek-V3.1DeepSeek, Aug 2025DeepSeek-V3.1-TerminusDeepSeek-V3.1-TerminusDeepSeek, Sep 2025
DeepSeekDeepSeek-V3.1 is the parent (successor)high confidencepress claim
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 3 models. Confidence and evidence are the notes' own.

R&D Topics

Identity

Developer
DeepSeek
Family
not in the notes
Released
22 Sep 2025 sourcesregistry date
Weights published
22 Sep 2025
Record checked
11 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
not in the notes
Total parameters
– sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
text
Output
text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
open weights permissive
Licence
MIT License sources
Access routes
API, consumer app, open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
self_attn.o_proj parameters do not conform to the UE8M0 FP8 scale format in this checkpoint (known issue per model card)
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Industry Use Cases

No industry use case links this model.

Sources

  1. huggingface.co/deepseek-ai/DeepSeek-V3.1-Terminus https://huggingface.co/deepseek-ai/DeepSeek-V3.1-Terminus
  2. api-docs.deepseek.com/news/news250922 https://api-docs.deepseek.com/news/news250922
  3. openrouter.ai/deepseek/deepseek-v3.1-terminus https://openrouter.ai/deepseek/deepseek-v3.1-terminus

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "DeepSeek-V3.1-Terminus", https://aurion.semai.id/models/deepseek-deepseek-v3-1-terminus/, records of October 2026.