Claude 2 Models by Anthropic
Last refreshed 2026-07-26. Next refresh: weekly.
Details
Capabilities
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WebsiteAbout
Claude 2 is a cutting-edge large language model developed by Anthropic, aimed at generating human-like text and assisting with diverse tasks. Released in July 2023, it enhances the capabilities of Claude 1.3 with improved performance and an impressive context window of up to 100,000 tokens, facilitating extensive document processing. This makes it ideal for summarization, coding assistance, and complex reasoning tasks. Trained with reinforcement learning from human feedback, Claude 2 excels in producing safe and relevant responses, scoring in the 90th percentile of the GRE reading and writing benchmarks. It stands as a strong competitor to leading models like OpenAI's GPT-4 124.
Decision facts
- Best fit
- structured outputscodingmath-heavy prompts
- Capability starting point
- Claude 2.1 with 200k context and structured outputs
- Lowest tracked input
- Claude 2.1 · $8/1M · AWS Bedrock
- Closest related family
- Computer Use
Archived Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
Keep only for existing workloads; choose a current variant for new builds.
Keep only for existing workloads; choose a current variant for new builds.
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Claude 2.1 | Keep only for existing workloads; choose a current variant for new builds. | 2023-11 | 200k contextstructured outputs | Archived |
| Claude 2 | Keep only for existing workloads; choose a current variant for new builds. | 2023-07 | 100k contextstructured outputs | Archived |
Release Timeline
2 release groupsSpecifications(2 models)
| Model | Released | Context | Structured Outputs |
|---|---|---|---|
| Claude 2.1 | 2023-11 | 200k | Yes |
| Claude 2 | 2023-07 | 100k | Yes |
Available From(2 providers)
Pricing
| Model | Provider | Input / 1M | Output / 1M | Type |
|---|---|---|---|---|
| Claude 2.1 | AWS Bedrock | $8 | $24 | Serverless |
| Claude 2 | AWS Bedrock | $8 | $24 | Serverless |
| Claude 2 | Anthropic | $8 | $24 | Serverless |
| Claude 2.1 | Anthropic | $8 | $24 | Serverless |
