Claude Sonnet 5
FrontierVisionToolsAnthropic · Released June 2026
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
It belongs to Anthropic's Claude family: Opus is the deep-capability tier, Sonnet balances quality and speed, Haiku is the light tier, and Fast servings trade some depth for latency.
Facts and pricing
- Provider
- Anthropic
- Context window
- 1M tokens
- Input price
- 22.0 credits / 1M tokens ($2.00 raw)
- Output price
- 110 credits / 1M tokens ($10.00 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 1.10x margin. Raw prices shown per 1M tokens.
Try Claude Sonnet 5 now
What Claude Sonnet 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 Sonnet 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 Sonnet 5 | 1M | 22.0 | 110 | June 2026 |
| Claude Fable 5 | 1M | 110 | 550 | June 2026 |
| Claude Opus 4.8 (Fast) | 1M | 110 | 550 | May 2026 |
| Claude Opus 4.8 | 1M | 55.0 | 275 | May 2026 |
| Claude Opus 4.7 (Fast) | 1M | 330 | 1650 | May 2026 |
| Claude Opus 4.7 | 1M | 55.0 | 275 | April 2026 |
| Claude Sonnet 4.6 | 1M | 33.0 | 165 | February 2026 |
| Claude Opus 4.6 | 1M | 55.0 | 275 | February 2026 |
| Claude Opus 4.5 | 200K | 55.0 | 275 | November 2025 |
| Claude Haiku 4.5 | 200K | 11.0 | 55.0 | October 2025 |
Compare Claude Sonnet 5
- Claude Sonnet 5 vs GPT-5.6 Sol
- Claude Sonnet 5 vs Gemini 3.1 Pro Preview
- Claude Sonnet 5 vs Grok 4.5
- Claude Sonnet 5 vs DeepSeek V4 Pro
- Claude Sonnet 5 vs GPT-5.6 Luna
- Claude Sonnet 5 vs Grok Build 0.1
- Claude Sonnet 5 vs Claude Fable 5
- Claude Sonnet 5 vs Claude Opus 4.8
Frequently asked questions
- What is Claude Sonnet 5?
- Claude Sonnet 5 is an AI model by Anthropic. Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
- How much does Claude Sonnet 5 cost on Zeplik?
- Input tokens cost 22.0 credits per million and output tokens 110 credits per million (1 credit = $0.10; the raw provider rates are $2.00 and $10.00 per million). New accounts start with free credits.
- How long can a conversation with Claude Sonnet 5 be?
- Claude Sonnet 5 has a 1M-token context window (1,000,000 tokens), which covers the conversation plus any documents you attach.
- Does Claude Sonnet 5 support images and tools?
- Claude Sonnet 5 accepts image input and supports tool calling.
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