Models/DeepSeek/DeepSeek V3.1 Terminus

DeepSeek V3.1 Terminus

DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...

01

Identity

163,840Context in
163,840Context out
2025-09-22 (OpenRouter created 1758548275)Released
OpenWeights
Canonical name
DeepSeek V3.1 Terminus
Aliases
deepseek/deepseek-v3.1-terminus, deepseek-ai/DeepSeek-V3.1-Terminus
Continuum hosted id
Not listed as a Continuum hosted id
OpenRouter slug
deepseek/deepseek-v3.1-terminus
Hugging Face
deepseek-ai/DeepSeek-V3.1-Terminus
Modalities
text
Open weights Not on Continuum host list Open

Context window on the 2026-08-19 OpenRouter row: 163,840 tokens.

Max completion tokens on that row: 163,840.

Input / output on that row: $0.27 / $1.00 per 1M tokens.

Architecture fields: text->text · DeepSeek · deepseek-v3.1.

Hugging Face id on that row: deepseek-ai/DeepSeek-V3.1-Terminus.

02

Should I use this for coding agents

DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent ca

When you want the 2025-09-22 catalog SKU, not a later rename.

DeepSWE

No official DeepSWE mini-swe-agent row for this identity on the public board we fetched.

omitted, not invented as of 2026-08-13 source
Artificial Analysispublished integer
22
bench
Artificial Analysis
version
Intelligence Index
harness
published integer
metric
Intelligence Index
value
22
independent as of 2026-08-19 source
Vals Index

We did not open a vals.ai card for this identity. Chip omitted.

omitted, not invented as of 2026-08-19 source

Ranked view: Best coding models: the independent leaderboard puts this row and every other card that carries an independent coding score on one board, with the confidence intervals left visible.

Named benches, printed only

Copied from AA or vals HTML we opened. 0.0% placeholder bars are omitted. Do not average these into the hero tiles, and do not invent CI, $/task, or steps for Artificial Analysis.

BenchPrintedNoteSourceURLAs of
SciCode 32.1% Printed on the AA Intelligence Evaluations grid for DeepSeek V3.1 Terminus (Non-reasoning). Not a DeepSWE chip. Artificial Analysis DeepSeek V3.1 Terminus source 2026-08-19
Humanity's Last Exam 8.7% Printed on the AA Intelligence Evaluations grid for DeepSeek V3.1 Terminus (Non-reasoning). Not a DeepSWE chip. Artificial Analysis DeepSeek V3.1 Terminus source 2026-08-19
GPQA Diamond 75.1% Printed on the AA Intelligence Evaluations grid for DeepSeek V3.1 Terminus (Non-reasoning). Not a DeepSWE chip. Artificial Analysis DeepSeek V3.1 Terminus source 2026-08-19
AA-Omniscience Accuracy 23.5% Printed on the AA Intelligence Evaluations grid for DeepSeek V3.1 Terminus (Non-reasoning). Not a DeepSWE chip. Artificial Analysis DeepSeek V3.1 Terminus source 2026-08-19
AA-LCR 45% Printed on the AA Intelligence Evaluations grid for DeepSeek V3.1 Terminus (Non-reasoning). Not a DeepSWE chip. Artificial Analysis DeepSeek V3.1 Terminus source 2026-08-19
03

When not to use it

Trust this before you buy

  • When you need a Continuum-hosted SKU from this lab, use the hosted card on this hub instead of this catalog row.
  • $0.27 in / $1.00 out per 1M on the 2026-08-19 OpenRouter row. Context 163,840 in / 163,840 out.
  • Need a denser published sibling on this hub? DeepSeek V4 Flash is the card already on the cluster.

Plus is $25/mo with $25 weekly hosted usage. The Mac app stays free with your own keys. Get Plus is not Download for Mac.

04

Artifact and Hugging Face downloads

Artifact

SPDX / license
mit
Total params
HF safetensors.total: 684,531,386,000 stored tensors
Native precision
HF tensors BF16 + F8_E4M3 + F32
Repo size
HF API usedStorage 688,588,816,461 bytes
HF created
2025-09-22T04:56:04.000Z
Official HF repo
deepseek-ai/DeepSeek-V3.1-Terminus
HF downloads
19,644
HF likes
365

Official weights id on the 2026-08-19 OpenRouter row: deepseek-ai/DeepSeek-V3.1-Terminus. Community GGUF is a quant, not a second Continuum card.

Official weights

This is the model repo, not Download for Mac. Downloads and likes from the Hugging Face API on 2026-08-19.

Hub file tree

Safetensor shards
163
Shard bytes
688,588,816,461 bytes
Other file bytes
17,032,720 bytes
Tree file count
181
Hub usedStorage
688,588,816,461 bytes

usedStorage and the sum of .safetensors sizes can differ (LFS pointers, non-shard files, duplicate copies). Cited separately. Source: recursive tree API, 2026-08-19.

PathBytes
model-00001-of-000163.safetensors5,234,241,729
model-00002-of-000163.safetensors4,302,383,966
model-00003-of-000163.safetensors4,302,384,375
model-00004-of-000163.safetensors4,302,382,760
model-00005-of-000163.safetensors4,302,384,154
model-00006-of-000163.safetensors4,372,106,366
model-00007-of-000163.safetensors4,306,080,097
model-00008-of-000163.safetensors4,302,384,356
model-00009-of-000163.safetensors4,302,382,954
model-00010-of-000163.safetensors4,302,383,960
model-00011-of-000163.safetensors4,302,384,375
model-00012-of-000163.safetensors1,321,612,611
model-00013-of-000163.safetensors4,302,321,338
model-00014-of-000163.safetensors4,302,384,328
model-00015-of-000163.safetensors4,302,382,982
model-00016-of-000163.safetensors4,302,383,932
model-00017-of-000163.safetensors4,302,384,377
model-00018-of-000163.safetensors4,302,382,790
model-00019-of-000163.safetensors4,302,384,124
model-00020-of-000163.safetensors4,302,384,377
model-00021-of-000163.safetensors4,302,383,177
model-00022-of-000163.safetensors4,302,384,900
model-00023-of-000163.safetensors4,302,383,572
model-00024-of-000163.safetensors4,302,384,504
model-00025-of-000163.safetensors4,302,384,961
model-00026-of-000163.safetensors4,302,383,384
model-00027-of-000163.safetensors4,302,384,692
model-00028-of-000163.safetensors4,302,384,963
model-00029-of-000163.safetensors4,302,383,212
model-00030-of-000163.safetensors4,302,384,884
model-00031-of-000163.safetensors4,302,383,588
model-00032-of-000163.safetensors4,302,384,488
model-00033-of-000163.safetensors4,302,384,963
model-00034-of-000163.safetensors1,747,446,144
model-00035-of-000163.safetensors4,302,321,911
model-00036-of-000163.safetensors4,302,384,914
model-00037-of-000163.safetensors4,302,383,558
model-00038-of-000163.safetensors4,302,384,518
model-00039-of-000163.safetensors4,302,384,963
model-00040-of-000163.safetensors4,302,383,366
model-00041-of-000163.safetensors4,302,384,710
model-00042-of-000163.safetensors4,302,384,963
model-00043-of-000163.safetensors4,302,383,196
model-00044-of-000163.safetensors4,302,384,900
model-00045-of-000163.safetensors4,302,383,572
model-00046-of-000163.safetensors4,302,384,504
model-00047-of-000163.safetensors4,302,384,961
model-00048-of-000163.safetensors4,302,383,384
model-00049-of-000163.safetensors4,302,384,692
model-00050-of-000163.safetensors4,302,384,963
model-00051-of-000163.safetensors4,302,383,212
model-00052-of-000163.safetensors4,302,384,884
model-00053-of-000163.safetensors4,302,383,588
model-00054-of-000163.safetensors4,302,384,488
model-00055-of-000163.safetensors4,302,384,963
model-00056-of-000163.safetensors1,747,446,144
model-00057-of-000163.safetensors4,302,321,911
model-00058-of-000163.safetensors4,302,384,914
model-00059-of-000163.safetensors4,302,383,558
model-00060-of-000163.safetensors4,302,384,518
model-00061-of-000163.safetensors4,302,384,963
model-00062-of-000163.safetensors4,302,383,366
model-00063-of-000163.safetensors4,302,384,710
model-00064-of-000163.safetensors4,302,384,963
model.safetensors.index.json8,898,324
tokenizer.json7,847,578
assets/search_tool_trajectory.html134,421
modeling_deepseek.py75,741
inference/model.py33,856
configuration_deepseek.py9,898
inference/generate.py7,792
inference/kernel.py7,389
README.md4,680
inference/convert.py3,819
tokenizer_config.json3,744
config.json1,690
.gitattributes1,519
LICENSE1,084
inference/config_671B_v3.1.json529
inference/README.md433
generation_config.json171
inference/requirements.txt52

Showing the first 64 of 163 safetensor shards, plus 18 other files. The snapshot was capped at 64 shards when the tree API was read on 2026-08-19, so the remaining 99 are on the Files tab, not on this page. Totals above are the full tree API sum, not this slice. Byte sizes are Hub tree API size fields, never invented.

05

Continuum serving

OpenRouter slug deepseek/deepseek-v3.1-terminus on the 2026-08-19 catalog.

First party: https://api-docs.deepseek.com/.

Not on the Continuum host list fetched 2026-08-19.

Continuum hosted id not on the host list

We list first-party and OpenRouter, plus Continuum only when the live public allowlist named the id. This is not a 15-host routing table.

06

Economics

OpenRouter 2026-08-19: $0.27 in / $1.00 out per 1M tokens. Context 163,840 in / 163,840 out.

No separate internal-reasoning price on that row.

Price this model Opens the pricing calculator preloaded with DeepSeek V3.1 Terminus.
07

Provenance

ClaimSourceAs of
OpenRouter id deepseek/deepseek-v3.1-terminus; context 163840; created 1758548275; $0.27 / $1.00 per 1MOpenRouter /api/v1/models2026-08-19
AA Intelligence Index 22; 5 printed Index benchesArtificial Analysis model page2026-08-19
OpenRouter id deepseek/deepseek-v3.1-terminus, context 163,840OpenRouter /api/v1/models2026-08-19
HF downloads 19,644Hugging Face API deepseek-ai/DeepSeek-V3.1-Terminus2026-08-19
HF safetensors.total: 684,531,386,000 stored tensors; HF API usedStorage 688,588,816,461 bytes; created 2025-09-22T04:56:04.000Z; HF tensors BF16 + F8_E4M3 + F32Hugging Face API deepseek-ai/DeepSeek-V3.1-Terminus2026-08-19
163 safetensor shards; shard bytes 688,588,816,461; tree files 181Hugging Face tree API deepseek-ai/DeepSeek-V3.1-Terminus2026-08-19
08

Compare, FAQ, and Get Plus

No other card in this cluster shares a published DeepSWE official row we can put next to this one. We will not compare on vendor-blog numbers.

Continue through DeepSeek's model family with DeepSeek V3.1.

FAQ

Why does the lab blog disagree with DeepSWE or Scale?

Lab posts pick a harness, an effort, a split, and sometimes a private eval set. DeepSWE publishes the official mini-swe-agent row with cost, tokens, and steps. Scale SWE-bench Pro only counts when the public shared-harness board has a row we can fetch. A higher lab number is usually a different test, not a better one.

OpenAI-compatible call

No Continuum hosted id is verified for this model, so this page does not invent a curl target. Use the first-party API or the OpenRouter slug deepseek/deepseek-v3.1-terminus.

Plus is $25/mo with $25 weekly hosted usage. The Mac app stays free with your own keys. Get Plus is not Download for Mac.