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Claude 4 Opus

NanoGPT

Claude 4 Opus by NanoGPT costs $14.99 per 1M input tokens and $75.00 per 1M output tokens, with a 200K-token context window.

Pricing

Input (per 1M tokens)
$14.99
Output (per 1M tokens)
$75.00
Cached input (per 1M)
—

Specifications

Provider
NanoGPT
Context window
200K tokens
Parameters
—
Released
May 2025
Open weights
No
Frontier model
No

Benchmarks

SWE-bench Verified
73.2

Compare Claude 4 Opus with…

Claude 4 Opus vs Claude 4.1 Opus Thinking (32K)$75.00/1MClaude 4 Opus vs Claude Opus 4$75.00/1MClaude 4 Opus vs Claude Opus 4.1$75.00/1MClaude 4 Opus vs Claude 3 Opus$75.00/1MClaude 4 Opus vs o3 Pro$80.00/1MClaude 4 Opus vs OpenAI o3-pro (2025-06-10)$88.00/1M

FAQ

How much does Claude 4 Opus cost?

Claude 4 Opus is priced at $14.99 per 1M input tokens and $75.00 per 1M output tokens. Output tokens cost more than input.

What is Claude 4 Opus's context window?

Claude 4 Opus supports a context window of 200K tokens — the maximum prompt plus response length it can handle in a single request.

Is Claude 4 Opus open weight?

No — Claude 4 Opus is a closed/proprietary model accessed via API.

Data as of 2026-06-28. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.