Model profile / Meituan

LongCat-2.0

Meituan's open-weight 1.6T-A48B Mixture-of-Experts model with LongCat Sparse Attention, a 1,000,000-token context window, MIT licence, and official in-house agent and coding scores.

30 Jun 2026Open weights

Sources & details

Four areas of evidence

The capabilities behind the model.

How the indices work

Reasoning

108.8Index points

Mathematical and scientific problem solving.

This model│ Other models · 155 rated

Score and research range

Full-precision point: 108.84532769287343
Range: 106.23–111.46 · 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

8retained native records

8evidence 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

LongCat-2.0 is highlighted wherever a compatible measurement is available.

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

LongCat-2.0: 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: longcat-2-0
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: longcat-2-0
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 17Published values in each benchmark’s own units.

17 measurements

LongCat-2.0 published benchmark measurements
Benchmark	Result	Published configuration	Source
AA Long Context Reasoningstandard	62.667%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis AA-LCR evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
CritPtstandard	2.571%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis CritPt evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
GDPval-AA v2v2	26.61%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis GDPval-AA v2	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
GPQA Diamonddiamond	77.98%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis GPQA Diamond evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
Humanity's Last Examtext-only current	33.689%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis text-only HLE evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
SciCode2024	35.417%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis SciCode evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · reference-only
τ³-Banking3	13.196%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis tau3-Banking evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
Terminal-Bench2.1	50.187%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis Terminal-Bench v2.1 in e2b	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
IMOAnswerBench2026	81.8%	LongCat-2.0 (in-house harness)LongCat unified in-house harness	LongCat-2.0 model card ↗Observed 2026-06-30 · checked 2026-08-15provider-reported · reference-only
SWE-bench Multilingual2025	77.3%	LongCat-2.0 (in-house harness)LongCat unified in-house harness	LongCat-2.0 model card ↗Observed 2026-06-30 · checked 2026-08-15provider-reported · reference-only

Showing 10 of 17 measurements

Specifications & source recordsDocumented model details and original references.

Model ID / checkpoint: meituan-longcat/LongCat-2.0
Weight access: Open weights
Context window: 1,000,000
Maximum output: 131,072
Modalities: text
Details checked: 29 Aug 2026

Specialist task evidenceSeparate agent runs and execution conditions.

All models

Model profile / Meituan

LongCat-2.0

Meituan's open-weight 1.6T-A48B Mixture-of-Experts model with LongCat Sparse Attention, a 1,000,000-token context window, MIT licence, and official in-house agent and coding scores.

30 Jun 2026Open weights

Sources & details

Four areas of evidence

The capabilities behind the model.

How the indices work

Reasoning

108.8Index points

Mathematical and scientific problem solving.

This model│ Other models · 155 rated

Score and research range

Full-precision point: 108.84532769287343
Range: 106.23–111.46 · 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

8retained native records

8evidence families

Capabilities estimateQualified original evidence across four areas.

Performance in context

Capabilities, price & speed.

Explore every model

LongCat-2.0 is highlighted wherever a compatible measurement is available.

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

LongCat-2.0: 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: longcat-2-0
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: longcat-2-0
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 17Published values in each benchmark’s own units.

17 measurements

LongCat-2.0 published benchmark measurements
Benchmark	Result	Published configuration	Source
AA Long Context Reasoningstandard	62.667%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis AA-LCR evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
CritPtstandard	2.571%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis CritPt evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
GDPval-AA v2v2	26.61%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis GDPval-AA v2	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
GPQA Diamonddiamond	77.98%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis GPQA Diamond evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
Humanity's Last Examtext-only current	33.689%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis text-only HLE evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
SciCode2024	35.417%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis SciCode evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · reference-only
τ³-Banking3	13.196%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis tau3-Banking evaluation	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
Terminal-Bench2.1	50.187%	LongCat 2.0 (Artificial Analysis independent run)Artificial Analysis Terminal-Bench v2.1 in e2b	LongCat 2.0 individual evaluations ↗Observed 2026-08-29 · checked 2026-08-29independently-verified · ranking-eligible
IMOAnswerBench2026	81.8%	LongCat-2.0 (in-house harness)LongCat unified in-house harness	LongCat-2.0 model card ↗Observed 2026-06-30 · checked 2026-08-15provider-reported · reference-only
SWE-bench Multilingual2025	77.3%	LongCat-2.0 (in-house harness)LongCat unified in-house harness	LongCat-2.0 model card ↗Observed 2026-06-30 · checked 2026-08-15provider-reported · reference-only

Showing 10 of 17 measurements

Specifications & source recordsDocumented model details and original references.

Model ID / checkpoint: meituan-longcat/LongCat-2.0
Weight access: Open weights
Context window: 1,000,000
Maximum output: 131,072
Modalities: text
Details checked: 29 Aug 2026

Specialist task evidenceSeparate agent runs and execution conditions.