Transparent pricing with no hidden fees. Pay as you go.
claude-opus-4-8claude-opus-4-8| Model | Spec | PoYo price | Official price | You save |
|---|---|---|---|---|
| claude-opus-4-8 | Input | $4.00/1M tokens 800 credits /1M tokens | $5.00/1M tokens Official | 20% |
Output | $20.00/1M tokens 4000 credits /1M tokens | $25.00/1M tokens Official | 20% |
* Actual fees are based on the final output.
Complete guide to using Claude Opus 4.8 API
claude-opus-4-8. Anthropic positions Opus 4.8 for complex reasoning, long-horizon agentic coding, and high-autonomy work.Claude Opus 4.8 builds on Opus 4.7 with stronger coding, agentic, and professional-work performance while keeping the same core platform feature set.
01
Claude Opus 4.8 serves a 1M token context window by default on the Claude API, Amazon Bedrock, and Vertex AI. You no longer need a long-context beta header for Claude API usage, which simplifies large-codebase and long-document integrations.
02
Opus 4.8 supports up to 128K output tokens, making it suitable for long reports, generated code, migration plans, structured audits, and high-detail research responses where truncation would break the workflow.
03
Anthropic documents adaptive thinking support for Claude Opus 4.8. The launch documentation also introduces fast mode as a research preview on the Claude API, giving teams a new option when they need lower latency from an Opus-tier model.
04
Claude Opus 4.8 lowers the minimum cacheable prompt length to 1,024 tokens. That makes prompt caching useful in more agent and coding workflows, especially when repeated context blocks are shorter than older cache thresholds.
Use Claude Opus 4.8 for repository-scale changes, multi-step debugging, migration planning, code review, and agents that need to keep a large amount of context active.
Build agents that plan, use tools, revise work, and produce long structured outputs while maintaining context across extended tasks.
Analyze long contracts, research packets, policy documents, technical specs, and evidence collections without aggressive chunking.
Power internal assistants, compliance review, business intelligence, research synthesis, and reasoning-heavy enterprise automation.
Claude Opus 4.8 is the successor to Opus 4.7. Anthropic positions it as a modest but tangible upgrade with stronger performance across coding, agentic tasks, and professional work, while retaining the same broad tool and platform feature set.
| Feature | Claude Opus 4.8 | Claude Opus 4.7 |
|---|---|---|
| Model ID | claude-opus-4-8 | claude-opus-4-7 |
| Launch date | May 28, 2026 | April 16, 2026 |
| Positioning | Most capable Opus-tier model for complex reasoning, agentic coding, and high-autonomy work | Earlier Opus model for complex coding, vision, and multi-step tasks |
| Context window | 1M tokens by default on Claude API, Bedrock, and Vertex AI | 1M tokens |
| Max output | 128K tokens | 128K tokens |
| Prompt caching | Minimum cacheable prompt length lowered to 1,024 tokens | Older cache threshold |
| Pricing | $4 input / $20 output per 1M tokens | $4 input / $20 output per 1M tokens |
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Use claude-opus-4-8 as the model ID in your request.
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| Model | Input | Output |
|---|---|---|
| Claude Opus 4.8 | $4 / 1M tokens 800 credits | $20 / 1M tokens 4000 credits |
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claude-opus-4-8.