Model profile / DeepSeek

DeepSeek V3.1 Terminus

DeepSeek V3.1 Terminus is a open-weight model tracked via Artificial Analysis independent evaluations for capability comparison across coding, agents, and reasoning.

Release date unavailableOpen weightsProvider

Sources & details

Four areas of evidence

The capabilities behind the model.

How the indices work

Reasoning

104.2Index points

Mathematical and scientific problem solving.

This model│ Other models · 155 rated

Score and research range

Full-precision point: 104.223754339087
Range: 101.60–106.84 · 90% Research Range
Scope: Conditional fuller R0 A

Score includes qualified prediction of missing evidence.

Coding

No current rating

Software engineering and programming.

Awaiting a qualified category score

General

No current rating

Factual reliability and instruction following.

Awaiting a qualified category score

Agentic

No current rating

Tool use, workflows and professional tasks.

Awaiting a qualified category score

7retained native records

7evidence families

Capabilities estimateQualified original evidence across four areas.

Current index snapshot · 2026-09-16. Each category uses its own scale; scores across categories are not directly comparable. Evidence counts describe the retained Capabilities inputs; a family can contain several tasks or configurations. A point lead does not establish superiority.

Performance in context

Capabilities, price & speed.

Explore every model

DeepSeek V3.1 Terminus is highlighted wherever a compatible measurement is available.

DeepSeek V3.1 Terminus: Retired or changed served checkpoint; current DeepSeek endpoint prices cannot transfer to frozen predecessor weights

Lumina Capabilities Index

Capabilities versus API price

The current Capabilities cohort, with this model highlighted.

Lumina

2025+ · 62 models · 1 highlighted

Chart loads as you explore

DeepSeek V3.1 Terminus: No exact base-profile release and documented 10K output measurement; other effort/protocol/alias records not substituted

Lumina Capabilities Index

Capabilities versus output speed

The current Capabilities cohort, with this model highlighted.

Lumina

2025+ · 72 models · Developer API · 10K · 1 highlighted

Chart loads as you explore

Explore the detail

Sources & model details.

Original evidence, with its context.

Current index evidence 2Scores, research ranges and the sources behind each category.

Capabilities

Score uses the admitted direct native evidence under the selected method.

Exact checkpoint: deepseek-v3-1-terminus
Method: methods-a4471cee84fd478d2ed3
Range interpretation: C1 native factor under conditional crossed source/family reweighting of admitted fixed-corpus reference and own portfolio
Sources: Artificial Analysis:Artificial Analysis
Source cutoff: {"asOfMeaning":"Selected local candidate: retained historical measurements plus reviewed additions; execution dates remain source-native.","newIdentityRecovery":"2026-09-13T08:41:08.804270+00:00","publicProjectionDate":"2026-09-16T06:02:45.491398+00:00","scoring":"Inherited pinned baseline source vintages plus retained4A/4A.1 originals and SWE owner correction; heterogeneous execution dates, often unknown. Not a claim of simultaneous2026-09-13 execution."}

Explore this index

Reasoning

Score includes qualified prediction of missing evidence.

Exact checkpoint: deepseek-v3-1-terminus
Method: methods-a4471cee84fd478d2ed3
Range interpretation: Conditional fuller R0 A
Sources: aa
Source cutoff: {"asOfMeaning":"Selected local candidate: retained historical measurements plus reviewed additions; execution dates remain source-native.","newIdentityRecovery":"2026-09-13T08:41:08.804270+00:00","publicProjectionDate":"2026-09-16T06:02:45.491398+00:00","scoring":"Inherited pinned baseline source vintages plus retained4A/4A.1 originals and SWE owner correction; heterogeneous execution dates, often unknown. Not a claim of simultaneous2026-09-13 execution."}

Explore this index

Benchmark measurements 14Published values in each benchmark’s own units.

14 measurements

DeepSeek V3.1 Terminus published benchmark measurements
Benchmark	Result	Published configuration	Source
GDPval-AA v2Source-native version	19.464%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	GDPval-AA v2 Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
AA Long Context ReasoningSource-native version	65%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	AA Long Context Reasoning Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
AA-OmniscienceSource-native version	-24.317 index	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	AA-Omniscience Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
CritPtSource-native version	1.714%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	CritPt Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
τ²-Bench TelecomSource-native version	37.135%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	τ²-Bench Telecom Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
τ³-BankingSource-native version	15.876%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	τ³-Banking Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
Terminal-Bench HardSource-native version	30.303%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Terminal-Bench Hard Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
Terminal-BenchSource-native version	44.944%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Terminal-Bench Hard Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
SciCodeSource-native version	40.625%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Artificial Analysis Models Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
Humanity's Last ExamSource-native version	15.246%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Artificial Analysis Models Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only

Showing 10 of 14 measurements

Specifications & source recordsDocumented model details and original references.

Model ID / checkpoint: deepseek-v3.1-terminus
Weight access: Open weights
Context window: 128,000
Maximum output: Not documented
Modalities: text
Details checked: 27 Jul 2026

Specialist task evidenceSeparate agent runs and execution conditions.

All models

Model profile / DeepSeek

DeepSeek V3.1 Terminus

DeepSeek V3.1 Terminus is a open-weight model tracked via Artificial Analysis independent evaluations for capability comparison across coding, agents, and reasoning.

Release date unavailableOpen weightsProvider

Sources & details

Four areas of evidence

The capabilities behind the model.

How the indices work

Reasoning

104.2Index points

Mathematical and scientific problem solving.

This model│ Other models · 155 rated

Score and research range

Full-precision point: 104.223754339087
Range: 101.60–106.84 · 90% Research Range
Scope: Conditional fuller R0 A

Score includes qualified prediction of missing evidence.

Coding

No current rating

Software engineering and programming.

Awaiting a qualified category score

General

No current rating

Factual reliability and instruction following.

Awaiting a qualified category score

Agentic

No current rating

Tool use, workflows and professional tasks.

Awaiting a qualified category score

7retained native records

7evidence families

Capabilities estimateQualified original evidence across four areas.

Performance in context

Capabilities, price & speed.

Explore every model

DeepSeek V3.1 Terminus is highlighted wherever a compatible measurement is available.

DeepSeek V3.1 Terminus: Retired or changed served checkpoint; current DeepSeek endpoint prices cannot transfer to frozen predecessor weights

Lumina Capabilities Index

Capabilities versus API price

The current Capabilities cohort, with this model highlighted.

Lumina

2025+ · 62 models · 1 highlighted

Chart loads as you explore

DeepSeek V3.1 Terminus: No exact base-profile release and documented 10K output measurement; other effort/protocol/alias records not substituted

Lumina Capabilities Index

Capabilities versus output speed

The current Capabilities cohort, with this model highlighted.

Lumina

2025+ · 72 models · Developer API · 10K · 1 highlighted

Chart loads as you explore

Explore the detail

Sources & model details.

Original evidence, with its context.

Current index evidence 2Scores, research ranges and the sources behind each category.

Capabilities

Score uses the admitted direct native evidence under the selected method.

Exact checkpoint: deepseek-v3-1-terminus
Method: methods-a4471cee84fd478d2ed3
Range interpretation: C1 native factor under conditional crossed source/family reweighting of admitted fixed-corpus reference and own portfolio
Sources: Artificial Analysis:Artificial Analysis
Source cutoff: {"asOfMeaning":"Selected local candidate: retained historical measurements plus reviewed additions; execution dates remain source-native.","newIdentityRecovery":"2026-09-13T08:41:08.804270+00:00","publicProjectionDate":"2026-09-16T06:02:45.491398+00:00","scoring":"Inherited pinned baseline source vintages plus retained4A/4A.1 originals and SWE owner correction; heterogeneous execution dates, often unknown. Not a claim of simultaneous2026-09-13 execution."}

Explore this index

Reasoning

Score includes qualified prediction of missing evidence.

Exact checkpoint: deepseek-v3-1-terminus
Method: methods-a4471cee84fd478d2ed3
Range interpretation: Conditional fuller R0 A
Sources: aa
Source cutoff: {"asOfMeaning":"Selected local candidate: retained historical measurements plus reviewed additions; execution dates remain source-native.","newIdentityRecovery":"2026-09-13T08:41:08.804270+00:00","publicProjectionDate":"2026-09-16T06:02:45.491398+00:00","scoring":"Inherited pinned baseline source vintages plus retained4A/4A.1 originals and SWE owner correction; heterogeneous execution dates, often unknown. Not a claim of simultaneous2026-09-13 execution."}

Explore this index

Benchmark measurements 14Published values in each benchmark’s own units.

14 measurements

DeepSeek V3.1 Terminus published benchmark measurements
Benchmark	Result	Published configuration	Source
GDPval-AA v2Source-native version	19.464%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	GDPval-AA v2 Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
AA Long Context ReasoningSource-native version	65%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	AA Long Context Reasoning Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
AA-OmniscienceSource-native version	-24.317 index	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	AA-Omniscience Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
CritPtSource-native version	1.714%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	CritPt Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
τ²-Bench TelecomSource-native version	37.135%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	τ²-Bench Telecom Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
τ³-BankingSource-native version	15.876%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	τ³-Banking Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
Terminal-Bench HardSource-native version	30.303%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Terminal-Bench Hard Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
Terminal-BenchSource-native version	44.944%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Terminal-Bench Hard Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · ranking-eligible
SciCodeSource-native version	40.625%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Artificial Analysis Models Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only
Humanity's Last ExamSource-native version	15.246%	DeepSeek V3.1 Terminus (Reasoning)Artificial Analysis independent evaluation	Artificial Analysis Models Leaderboard ↗Observed 2026-07-15 · checked 2026-07-15source-checked · reference-only

Showing 10 of 14 measurements

Specifications & source recordsDocumented model details and original references.

Model ID / checkpoint: deepseek-v3.1-terminus
Weight access: Open weights
Context window: 128,000
Maximum output: Not documented
Modalities: text
Details checked: 27 Jul 2026

Specialist task evidenceSeparate agent runs and execution conditions.

The capabilities behind the model.

Capabilities, price & speed.

Capabilities versus API price

Capabilities versus output speed

Sources & model details.

Capabilities

Reasoning

More from DeepSeek.

DeepSeek V4.1 Flash

DeepSeek V4 Pro 0813

DeepSeek V3.2

The capabilities behind the model.

Capabilities, price & speed.

Capabilities versus API price

Capabilities versus output speed

Sources & model details.

Capabilities

Reasoning

More from DeepSeek.

DeepSeek V4.1 Flash

DeepSeek V4 Pro 0813

DeepSeek V3.2