Anthropic: Claude Opus 4.8
🇺🇸 Anthropic · Claude Opus
Overview
Anthropic: Claude Opus 4.8 is a large language model API from Anthropic, part of its Claude Opus model family. With $5.00 per million input tokens and $25.00 per million output tokens, it is a premium-tier model where output volume is the main cost to watch. Output tokens cost about 5× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1M-token context window (≈1,500 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts Image, File input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 61 (S grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.
| Dimension | Unit | Price (USD) |
|---|---|---|
| Input | per 1M tokens | $5.00 |
| Output | per 1M tokens | $25.00 |
| Cached Input | per 1M tokens | $0.500 |
| Cache Write | per 1M tokens | $6.25 |
| Web Search | per search | $0.010 |
- Provider
- Anthropic
- Model Family
- Claude Opus
- Version String
- anthropic/claude-opus-4.8
- Status
- Active
- Modality
- Text, Image, File
- Context Window
- 1,000,000 tokens
- Output Limit
- 128,000 tokens
Index Metrics
Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis
Benchmark Scores
Data source: Artificial Analysis
Performance Metrics
Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis
Use Case Analysis
Model strengths, weaknesses, and ideal use cases based on benchmarks and official documentation
Strength
- Complex Reasoning & Agentic Coding Anthropic most capable model for long-horizon agentic coding with improved long-context handling. Official
- Adaptive Thinking Automatically adjusts thinking depth based on task complexity. Spends more time on harder problems. Official
- Honesty & Error Detection Around 4x less likely than predecessor to allow flaws in code to pass unremarked. Official
Best For
- Complex Software Engineering Codebase-scale migrations, multi-service explorations, and production incident resolution. Official
- Long-Horizon Autonomous Tasks Tasks requiring sustained execution across hundreds or thousands of steps with minimal human oversight. Official
Weakness
- Higher Cost $5 per million input tokens and $25 per million output tokens. Official
Not Recommended
- Real-time Latency-Critical Systems Applications requiring sub-second response times should use faster models like Haiku 4.5. Official
90-Day Price Trend
Input / Output price (USD per 1M tokens)
Past 90 days of records; every price change is shown here
| Date | Dimension | Price (USD) | Source |
|---|---|---|---|
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter | |
| Web Search | $0.010 | OpenRouter | |
| Cache Write | $6.25 | OpenRouter | |
| Cached Input | $0.500 | OpenRouter | |
| Output | $25.00 | OpenRouter | |
| Input | $5.00 | OpenRouter |
Key Insights
Key data points from this page for quick reference and citation.
- Anthropic: Claude Opus 4.8 Input price: $5/M tokens
- Anthropic: Claude Opus 4.8 Output price: $25/M tokens
- Context window: 1,000,000 tokens
- Provider: Anthropic
- Model family: Claude Opus
- Modalities: Text, Image, File
- Data source: OpenRouter, updated daily