Anthropic / SOURCE-LINKED MODEL RECORD

Claude 2.1

A model record assembled from original source observations. Review the exact artifact and its evidence before choosing a deployment.

Hosted modelverifiedObserved Oct 10, 2026
Input types
text, image
Output types
text
Observed context window
Not established
Source release date
Not established

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The canonical record is anthropic:claude-2.1. Capabilities and context limits reflect source observations; the limits of a particular inference endpoint may differ.

Inclusion in the radar does not mean this model is served by Flonno. For the model currently available through our API, see Qwen3.8 Flash 27B and API pricing.

Artifact evidence

artificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030b

independent benchmark · Pinned artifact · Artificial Analysis evaluated configuration. First observed Aug 9, 2026; last observed Oct 13, 2026.

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claude-2.1

official changelog · Mutable source entry · Official provider announcement. First observed Aug 9, 2026; last observed Oct 10, 2026.

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Pin the artifact and inference configuration. Use representative inputs with a written answer rubric, then record accepted results, errors, complete request time and token usage. Keep output budgets and concurrency explicit.

Benchmark results apply to their recorded version and method. They do not transfer automatically to a different runtime or a quantized derivative.

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Benchmark provenance

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Source observations for exact artifacts. Scores from different benchmark versions or methods are not interchangeable.
BenchmarkReported resultProvenanceArtifact / date
Artificial Analysis Intelligence Indexv4.3 · reasoning5.6 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bSep 9, 2026
Artificial Analysis Coding Indexv4.3 · coding14 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bSep 9, 2026
Artificial Analysis Intelligence Indexv4.3 · reasoning1 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bSep 8, 2026
Artificial Analysis Coding Indexv4.3 · coding14 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bSep 8, 2026
Artificial Analysis Intelligence Indexv4.2 · reasoning1 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bSep 5, 2026
Artificial Analysis Coding Indexv4.2 · coding14 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bSep 5, 2026
Artificial Analysis Coding Indexv4.1 · coding14 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bAug 9, 2026
Artificial Analysis Intelligence Indexv4.1 · reasoning3.5 index_pointsSource record verifiedArtificial Analysis ↗independent benchmarkartificial-analysis:9e141c0d-fc82-4e07-bb2e-fe0003bc030bAug 9, 2026

Verified lifecycle updates

Source publication date
Anthropic / retirement

Anthropic Claude 2.1 retired

Claude 2.1 wurde eingestellt. Anfragen an dieses Modell werden nun mit einer Fehlermeldung beantwortet.

AI-assisted summary · gemma-4-31b-itRecorded Aug 9, 2026
Source publication date
Anthropic / deprecation

Anthropic Claude 2.1 deprecation announced

Anthropic hat die Einstellung von Claude 2, Claude 2.1 und Claude Sonnet 3 angekündigt. Dies betrifft die Verfügbarkeit dieser spezifischen Modellversionen.

AI-assisted summary · gemma-4-31b-itRecorded Aug 9, 2026