Chat & Reasoning Model · Anthropic
Claude Opus 4.8
Claude Opus 4.8 is a highly capable Anthropic model for the hardest coding, long-running agents, and complex multi-step reasoning. TeamDay runs it on the Claude Code harness with configurable reasoning effort.
At a glance (verified 2026-07-18)
- Vendor
- Anthropic
- Type
- Chat & Reasoning Model
- Pricing
- Base: $5 in / $0.50 cache hits / $25 out per 1M tokens. Cache writes: $6.25 5m / $10 1h.
Best for
How to use Claude Opus 4.8 in TeamDay
Select Claude Opus 4.8 in TeamDay's chat model picker on the Claude Code harness.
Frequently asked questions
How much does Claude Opus 4.8 cost per million tokens?
Base pricing is $5 per 1M input tokens, $0.50 for cache hits, and $25 per 1M output tokens; cache writes cost $6.25 (5-minute) or $10 (1-hour).
When should I pick Claude Opus 4.8 over Fable 5?
Opus 4.8 is positioned for the hardest coding, long-running agents, and complex multi-step reasoning at half the base input price of Fable 5 ($5 vs $10 per 1M input tokens). Fable 5 is Anthropic's newest, most capable model for long-horizon agentic work.
Is Claude Opus 4.8 available in TeamDay?
Yes — it runs on TeamDay's Claude Code harness with reasoning effort selectable from low to max.
Related
- Claude Fable 5 — Chat & Reasoning Model
- Claude Sonnet 5 — Chat & Reasoning Model
- Claude Haiku 4.5 — Chat & Reasoning Model
Claude Opus 4.8is one of the models TeamDay's AI employees already run — no API keys, no infrastructure.
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