How much does Claude Opus 5.5 cost on Zeplik?

Input tokens cost 48.0 credits per million and output tokens 240 credits per million (1 credit = $0.10; the raw provider rates are $4.00 and $20.00 per million). New accounts start with free credits.

How long can a conversation with Claude Opus 5.5 be?

Claude Opus 5.5 has a 1M-token context window (1,000,000 tokens), which covers the conversation plus any documents you attach.

Does Claude Opus 5.5 support images and tools?

Claude Opus 5.5 accepts image input and supports tool calling.

Claude Opus 5.5

FrontierVisionTools

Anthropic · Released September 2026

Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.

It belongs to Anthropic's Claude family: Opus is the deep-capability tier and Claude Opus 5.5 leads it, Sonnet balances quality and speed, Fable is the most recently introduced line, and Haiku is the light tier.

Facts and pricing

Provider: Anthropic
Context window: 1M tokens
Input price: 48.0 credits / 1M tokens ($4.00 raw)
Output price: 240 credits / 1M tokens ($20.00 raw)
Vision (image input): Yes
Tool calling: Yes
Extended reasoning: No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin. Raw prices shown per 1M tokens.

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What Claude Opus 5.5 is best for

Hard problems where answer quality matters more than cost: strategy, analysis, difficult writing
Very long documents and codebases: a 1M-token window fits entire books or repositories in one conversation
Working with images: screenshots, charts, photos and scanned documents alongside text
Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows

Example prompts

Prompts that suit a frontier model like Claude Opus 5.5:

Review this business plan and give me the three hardest questions an investor would ask
Rewrite this announcement so it lands with both engineers and executives
I am choosing between two job offers, help me think through the tradeoffs
Draft a technical design doc for a rate limiter, including failure modes

Anthropic family

Model	Context	Input cr/M	Output cr/M	Released
Claude Haiku 5.5	1M	1.2	6.0	October 2026
Claude Sonnet 5.5	1M	24.0	120	September 2026
Claude Opus 5.5	1M	48.0	240	September 2026
Claude Opus 5.5 (batch)	1M	24.0	120	September 2026
Claude Fable 5.1	1M	120	600	September 2026
Claude Fable 5.1 (batch)	1M	60.0	300	September 2026
Claude Opus 5	1M	60.0	300	July 2026
Claude Opus 5 (batch)	1M	30.0	150	July 2026
Claude Sonnet 5 (batch)	1M	12.0	60.0	June 2026
Claude Sonnet 5	1M	24.0	120	June 2026

All 29 Anthropic models

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Frequently asked questions

What is Claude Opus 5.5?: Claude Opus 5.5 is an AI model by Anthropic. Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.
How much does Claude Opus 5.5 cost on Zeplik?: Input tokens cost 48.0 credits per million and output tokens 240 credits per million (1 credit = $0.10; the raw provider rates are $4.00 and $20.00 per million). New accounts start with free credits.
How long can a conversation with Claude Opus 5.5 be?: Claude Opus 5.5 has a 1M-token context window (1,000,000 tokens), which covers the conversation plus any documents you attach.
Does Claude Opus 5.5 support images and tools?: Claude Opus 5.5 accepts image input and supports tool calling.