Claude Opus 4.7: token counter & pricing
Anthropic · exact (uses official tokenizer) · pricing as of 2026-04-26.
- Provider
- Anthropic
- API model ID
claude-opus-4-7- Context window
- 200,000 tokens
- Input price
- $15.00 per 1M tokens
- Output price
- $75.00 per 1M tokens
- Tokenizer accuracy
- exact (uses official tokenizer)
- Pricing as of
- 2026-04-26
Open the counter to count tokens for Claude Opus 4.7 in real time.
What is Claude Opus 4.7?
Claude Opus 4.7 is Anthropic's flagship model — the most capable model in the Claude family, designed for complex reasoning, long-context tasks, and high-stakes work where output quality matters more than per-call cost.
How tokens are counted here
Claude Opus uses Anthropic's official /v1/messages/count_tokens endpoint via our serverless proxy. Counts are exact — identical to what Anthropic's billing system will charge you.
The proxy sends the prompt to Anthropic's tokenization endpoint only. The prompt is never logged, never stored, and never used for training (per Anthropic's API policy on count_tokens).
When to use Claude Opus over Sonnet or Haiku
- Multi-step reasoning where a wrong intermediate step compounds.
- Long-form writing where voice, structure, and nuance matter.
- Code review and architecture critique on substantial diffs.
- Anywhere the cost of a wrong answer dwarfs the cost of a correct one.
For most chatbot, classification, and summarization workloads, Claude Sonnet 4.6 is 5× cheaper and usually indistinguishable in output quality. Use Opus when you've measured Sonnet falling short on your task.
Common questions
Why is Claude Opus pricing so high compared to GPT-4o mini?
GPT-4o mini is positioned as a high-volume, low-cost model; Claude Opus is positioned as a frontier reasoning model. They aren't competing for the same workloads. The comparison that matters is Claude Opus vs GPT-4o vs Gemini 2.5 Pro — those are the frontier-class models.
Does the 200,000-token context window cost more?
No — input is billed per token regardless of where in the context window the token sits. A 100,000-token prompt costs the same per token as a 1,000-token prompt. The total cost just scales with the number of tokens you send.
How do I count tokens for a prompt that includes images or PDFs?
Image and PDF tokens are counted by the same Anthropic endpoint, but our counter only handles text input today. For multimodal token counts, send the request directly to Anthropic's API.
Compare Claude Opus 4.7 to other models
- Claude Sonnet 4.6 (Anthropic, $3.00/$15.00)
- Claude Haiku 4.5 (Anthropic, $0.80/$4.00)
- GPT-4 Turbo (OpenAI, $10.00/$30.00)
- Llama 3.1 405B (Meta, $3.50/$3.50)
- GPT-4o (OpenAI, $2.50/$10.00)