Last refreshed 2026-06-24. Next refresh: weekly.
Why use Claude Opus 4.8 on OpenRouter?
OpenRouter offers Claude Opus 4.8 with pay-as-you-go pricing at $5.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Claude Opus 4.8 across 6 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: anthropic/claude-opus-4.8anthropic/claude-opus-4.8Request example
anthropic/claude-opus-4.8.Gotchas
- Use provider model ID "anthropic/claude-opus-4.8", not the LLMReference slug "claude-opus-4-8".
Compare Claude Opus 4.8 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $5.00 | $25.00 |
| AWS Bedrock | — | — |
| GCP Vertex AI | — | — |
| Microsoft Foundry | — | — |
| OpenRouter | $5.00 | $25.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $5.00 |
| Output tokens | $25.00 |
Capabilities
About Claude Opus 4.8
Claude Opus 4.8 is Anthropic's flagship Claude 4.8 model, released May 28, 2026 for agentic coding, long-horizon reasoning, computer use, and professional knowledge work. It supports text and image inputs, adaptive reasoning, tool use, structured outputs, computer-use tools, prompt caching, Batch API, Dynamic Workflows parallel subagents, a 1M-token context window on Anthropic API/Bedrock/Vertex, and 128K max output. Key datapack rows: SWE-bench Pro 69.2%, SWE-bench Verified 88.6%, Terminal-Bench 2.1 74.6%, HLE with tools 57.9%, OSWorld-Verified 83.4%, GDPval-AA 1890 Elo, and MCP-Atlas 82.2%. Standard Anthropic API pricing is $5/M input and $25/M output.
FAQ
What does Claude Opus 4.8 cost on OpenRouter?
On OpenRouter, Claude Opus 4.8 costs $5.00 per 1M input tokens and $25.00 per 1M output tokens.
What is the context window for Claude Opus 4.8 on OpenRouter?
Claude Opus 4.8 supports a 1m token context window on OpenRouter.
How does OpenRouter compare to other Claude Opus 4.8 providers?
Claude Opus 4.8 is available from 6 providers. The cheapest input pricing is $5.00/1M tokens from Anthropic.
What API model ID do I use for Claude Opus 4.8 on OpenRouter?
Use the model ID anthropic/claude-opus-4.8 when calling OpenRouter's API.
Who created Claude Opus 4.8?
Claude Opus 4.8 was created by Anthropic as part of the Claude 4.8 model family.
Is Claude Opus 4.8 open source?
Claude Opus 4.8 is not open source; the seed data lists it as proprietary.