Claude Opus 5.5 API pricing and Claude Code setup

Q: What is Claude Opus 5.5 API pricing?

Anthropic's standard rates are $4 input and $20 output per million tokens. Cache read, five-minute writes and one-hour writes are $0.20, $5 and $8 per MTok.

Q: When does the 30% campaign end?

The scheduled campaign end is November 12, 2026 at 15:00 China Standard Time. The reference offer is 30% of standard rates, a 70% saving.

Claude Opus 5.5 API pricing

Anthropic's standard API reference rate is $4 per million input tokens and $20 per million output tokens. Cache reads, five-minute cache writes, and one-hour cache writes are separate rates: $0.20, $5, and $8 per MTok. Check Anthropic's current pricing ↗.

Claude Opus 5.5 is positioned for long-running agentic coding and knowledge work. Compare API token pricing and Claude Code access separately from Claude Pro or Max subscription plans. The campaign information below is time-limited and follows the configured schedule.

Claude Opus 5.5 limited-time campaign: 30% of official rates, save 70%

The campaign is scheduled from October 28, 2026 at 15:00 through November 12, 2026 at 15:00 China Standard Time. During the active window, reference examples use 30% of Anthropic standard API rates, a 70% saving. After the end time, the page hides the discount example and marks the campaign as ended.

The final bill still depends on the API key authorized group, production pricing rules, route and actual token usage. These calculations are not a checkout quote; verify actual charges against account usage.

Configure Opus 5.5 in Claude Code

Use an API key from a CheapBuddy group authorized for Claude. Claude Code uses the native Anthropic Messages protocol. Keep your key in a local environment variable and out of project files.

export ANTHROPIC_BASE_URL="https://api.cheapbuddy.cc"
export ANTHROPIC_AUTH_TOKEN="$CHEAPBUDDY_API_KEY"
export ANTHROPIC_MODEL="claude-opus-5-5"
claude

Protocol and access boundaries

Native Anthropic Messages and OpenAI-compatible access are different request methods; use one per request. Claude requires a key authorized for a Claude group. An OpenAI group key does not automatically grant Claude access.

The upstream gateway manages account routing, protocol conversion, and settlement. SDK connectivity does not mean every Anthropic feature is supported; Batch, Files and Admin APIs are not promised here. Check the CheapBuddy API documentation ↗ for the current integration scope.

Common questions

What is Claude Opus 5.5 API pricing?

Anthropic's reference rates are $4 input and $20 output per MTok. Cache read, five-minute writes and one-hour writes are $0.20, $5 and $8.

When does the 30% campaign end?

The scheduled end is November 12, 2026, at 15:00 China Standard Time. The reference offer is 30% of standard rates, a 70% saving.

Is the campaign reference price guaranteed as my final charge?

No. Final charges depend on the authorized group, production pricing, route and actual token usage.

Does this discount Claude Pro or Max subscriptions?

No. This campaign concerns API reference-price examples, not Claude Pro or Max subscriptions.

Official pricing and provider availability can change. Review your authorized group and account usage before relying on a quote.

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