ModelInfo
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All models

Claude 2.1

Anthropicclaude-2.12023-11-21Report incorrect data

Specs

Context
200K
Max output
4.1K
Input price
$8/ 1M tokens
Output price
$24/ 1M tokens
Released
2023-11-21

Context

Context window
200K
Max input
—
Max output
4.1K

Pricing · USD / 1M tokens

Input
$8
Output
$24
Cache read
—
Cache write
—

Modalities

Input
Text
Output
Text

API

API types
messagescompletions

Reasoning

Not published

Info

Status
Retired
Released
2023-11-21
Knowledge cutoff
—

Features

Not published
Source · official docsVerified 2026-10-11

How to call

1 provider

anthropicmodel = claude-2.1

JSON

Standard format
claude-2.1.json
{
  "id": "claude-2.1",
  "object": "model",
  "created": 1700524800,
  "owned_by": "anthropic",
  "name": "Claude 2.1",
  "api": {
    "types": [
      "messages",
      "completions"
    ]
  },
  "limits": {
    "context": 200000,
    "input": null,
    "output": 4096
  },
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": {
    "currency": "USD",
    "unit": "1M_tokens",
    "input": 8,
    "output": 24,
    "cache_read": null,
    "cache_write": null
  },
  "features": [],
  "info": {
    "status": "retired",
    "release_date": "2023-11-21",
    "knowledge_cutoff": null,
    "description": null,
    "docs": "https://platform.claude.com/docs/en/about-claude/model-deprecations",
    "verified_at": "2026-10-11"
  }
}

Official sources

3