Author's Description
Claude 2 delivers advancements in key capabilities for enterprises—including an industry-leading 200K token context window, significant reductions in rates of model hallucination, system prompts and a new beta feature: tool use.
Key Specifications
Supported Parameters
This model supports the following parameters:
Performance Summary
Anthropic's Claude v2.1, released on November 21, 2023, offers a substantial 200K token context window and advancements in hallucination reduction and tool use. In terms of speed, Claude v2.1 demonstrates moderate performance, ranking in the 32nd percentile across benchmarks. Its pricing is positioned at a premium level, placing it in the 8th percentile for cost-effectiveness. A standout feature is its exceptional reliability, achieving the 96th percentile, indicating minimal technical failures and consistent response delivery. Across benchmark categories, Claude v2.1 shows varied performance. It exhibits strong accuracy in Ethics (96.0%) and General Knowledge (91.0%), suggesting a robust understanding in these domains. However, its performance in Coding (67.0% accuracy) and Reasoning (40.7% accuracy) is less competitive, ranking in the lower percentiles for accuracy. While its reliability is a significant strength, the model's premium pricing and moderate speed, coupled with lower accuracy in complex problem-solving and coding tasks, represent areas for potential improvement.
Model Pricing
Current Pricing
Feature | Price (per 1M tokens) |
---|---|
Prompt | $8 |
Completion | $24 |
Price History
Available Endpoints
Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
---|---|---|---|---|
Anthropic
|
Anthropic | anthropic/claude-2.1 | 200K | $8 / 1M tokens | $24 / 1M tokens |
Benchmark Results
Benchmark | Category | Reasoning | Free | Executions | Accuracy | Cost | Duration |
---|
Other Models by anthropic
|
Released | Params | Context |
|
Speed | Ability | Cost |
---|---|---|---|---|---|---|---|
Anthropic: Claude Opus 4.1 | Aug 05, 2025 | — | 200K |
File input
Text input
Image input
Text output
|
★★★ | ★★★★★ | +$$$$$ |
Anthropic: Claude Opus 4 | May 22, 2025 | — | 200K |
File input
Text input
Image input
Text output
|
★★ | ★★★★★ | +$$$$$ |
Anthropic: Claude Sonnet 4 | May 22, 2025 | — | 200K |
File input
Text input
Image input
Text output
|
★★ | ★★★★★ | $$$$$ |
Anthropic: Claude 3.7 Sonnet | Feb 24, 2025 | — | 200K |
File input
Text input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
Anthropic: Claude 3.5 Haiku | Nov 03, 2024 | — | 200K |
Text input
Image input
Text output
|
★★★★ | ★★★ | $$$$ |
Anthropic: Claude 3.5 Haiku (2024-10-22) | Nov 03, 2024 | — | 200K |
File input
Text input
Image input
Text output
|
★★★★ | ★★★ | $$$$ |
Anthropic: Claude 3.5 Sonnet | Oct 21, 2024 | ~400B | 200K |
File input
Text input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
Anthropic: Claude 3.5 Sonnet (2024-06-20) | Jun 19, 2024 | ~400B | 200K |
File input
Text input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
Anthropic: Claude 3 Haiku | Mar 12, 2024 | ~20B | 200K |
Text input
Image input
Text output
|
★★★★ | ★★ | $$$ |
Anthropic: Claude 3 Sonnet Unavailable | Mar 04, 2024 | ~200B | 200K |
Text input
Image input
Text output
|
★★★★ | ★★★ | $$$$$ |
Anthropic: Claude 3 Opus | Mar 04, 2024 | ~2T | 200K |
Text input
Image input
Text output
|
★★ | ★★★★ | +$$$$$ |
Anthropic: Claude v2 Unavailable | Nov 21, 2023 | 137B | 200K |
Text input
Text output
|
★★ | ★★ | +$$$$$ |
Anthropic: Claude v2.0 Unavailable | Jul 27, 2023 | 137B | 100K |
Text input
Text output
|
★★★ | ★★★ | +$$$$$ |