Anthropic AI Models
AI safety company creating helpful, harmless, and honest AI systems
Anthropic Models & Pricing
| Model | Input Price | Output Price | Context Window | Max Output | Category | Capabilities |
|---|---|---|---|---|---|---|
Claude Sonnet 4.6 Improved Sonnet with frontier-level coding, computer use, and reasoning at balanced pricing Released: 2/18/2026 | $3.00 per 1M tokens | $15.00 per 1M tokens | 1,000,000 tokens | 65,536 tokens | balanced | textvisioncodereasoningcomputer-use |
$5.00 per 1M tokens | $25.00 per 1M tokens | 1,000,000 tokens | 128,000 tokens | flagship | textvisionreasoningcode | |
Claude Opus 4.5 Latest Opus iteration with improved performance, released November 2025 Released: 11/1/2025 | $5.00 per 1M tokens | $25.00 per 1M tokens | 200,000 tokens | 64,000 tokens | flagship | textvisioncodereasoning |
$1.00 per 1M tokens | $5.00 per 1M tokens | 200,000 tokens | 64,000 tokens | efficient | textvision | |
$3.00 per 1M tokens | $15.00 per 1M tokens | 200,000 tokens | 64,000 tokens | balanced | textvisioncode | |
Claude Opus 4.1 Enhanced Claude 4 Opus with improved performance, released August 2025 Released: 8/5/2025 | $15.00 per 1M tokens | $75.00 per 1M tokens | 200,000 tokens | 32,000 tokens | flagship | textvisioncodereasoning |
Claude Opus 4 Anthropic's highly capable model released May 2025 with advanced reasoning Released: 5/14/2025 | $15.00 per 1M tokens | $75.00 per 1M tokens | 200,000 tokens | 32,000 tokens | flagship | textvisioncodereasoning |
$3.00 per 1M tokens | $15.00 per 1M tokens | 200,000 tokens | 64,000 tokens | standard | textvisioncodereasoning | |
$0.80 per 1M tokens | $4.00 per 1M tokens | 200,000 tokens | 8,192 tokens | efficient | textvision | |
Claude 3.5 Sonnet Previous generation balanced model with strong coding abilities Released: 10/22/2024 | $3.00 per 1M tokens | $15.00 per 1M tokens | 200,000 tokens | 8,192 tokens | balanced | textvisioncode |
$15.00 per 1M tokens | $75.00 per 1M tokens | 200,000 tokens | 4,096 tokens | flagship | textvisionreasoning |
Calculate Anthropic Costs
Use our calculator to estimate costs for any Anthropic model based on your usage patterns.
Compare Anthropic Models
Claude Sonnet 4.6 vs Claude Sonnet 4.5
Claude Opus 4.6 vs Claude Opus 4.5
Claude Opus 4.5 vs Claude Opus 4.1
Claude Haiku 4.5 vs Claude 3.5 Haiku
Claude Sonnet 4.5 vs Claude 3.5 Sonnet
Claude Opus 4.1 vs Claude Opus 4
Anthropic Pricing FAQ
How much does Anthropic API cost?
Anthropic offers 11 models with input pricing ranging from $0.80 to $15.00 per million tokens. The most affordable option is Claude 3.5 Haiku at $0.80/1M input and $4.00/1M output tokens.
What is the cheapest Anthropic model?
Claude 3.5 Haiku is the cheapest Anthropic model at $0.80 per million input tokens and $4.00 per million output tokens. It supports a 200,000-token context window.
Which Anthropic model should I use?
It depends on your use case. Claude 3.5 Haiku is best for cost-sensitive applications. Claude Opus 4 ($15.00/1M input) offers the strongest capabilities. For high-volume workloads, their efficient-tier models offer the best cost-performance ratio.
What models does Anthropic offer?
Anthropic currently offers 11 models: Claude Opus 4.6, Claude Sonnet 4.6, Claude Sonnet 4.5, Claude Opus 4, Claude Sonnet 4, Claude Opus 4.1, Claude Opus 4.5, Claude Haiku 4.5, Claude 3.5 Sonnet, Claude 3.5 Haiku, Claude 3 Opus. These span flagship, balanced, standard, efficient categories with context windows up to 1000K tokens.
How does Anthropic pricing compare to competitors?
Anthropic's pricing starts at $0.80/1M input tokens with Claude 3.5 Haiku. Use our comparison tool to see side-by-side pricing against other providers like OpenAI, Google, and Mistral.
Related Articles
Open-Source vs Proprietary AI Models: A Complete Cost Comparison for 2026
Llama 4, DeepSeek, and Mistral are closing the quality gap with GPT-5 and Claude — at a fraction of the price. We bre...
3/24/2026
AI Content Generation Costs: How Much Does AI Writing Really Cost in 2026?
AI writing costs range from $0.002 to $3.40 per article depending on the model. Full cost breakdown for blog posts, e...
3/22/2026
The True Cost of Building an AI Agent in 2026
AI agents run multi-turn loops, use tools, and burn through tokens fast. Here's exactly what they cost across every m...
3/19/2026
Anthropic Claude API Pricing Guide 2026: Opus, Sonnet & Haiku Costs Compared
Complete guide to Anthropic Claude API pricing in 2026. Compare costs for Claude Opus 4.6, Sonnet 4.6, and Haiku 4.5...
3/17/2026