claude-opus-4-8 API pricing

Anthropic charges $5 per million input tokens and $25 per million output tokens for claude-opus-4-8, and $0.5 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.0175, or $0.00875 through the batch API.

Prices updated October 28, 2026
Input / 1M tokens
$5
Output / 1M tokens
$25
Cached input / 1M tokens
$0.5
Typical request
$0.0175
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claude-opus-4-8 price per million tokens

Token typeStandardBatch API
Input$5$2.5
Cached input$0.5$0.25
Output$25$12.5

claude-opus-4-8 supports a 1M-token context window, up to 128K output tokens, image input, tool calling and reasoning.

What claude-opus-4-8 costs per request

Request1 request1,000 requests1M requests
Short chat message (300 in, 200 out)$0.0065$6.50$6,500.00
Typical request (1K in, 500 out)$0.0175$17.50$17,500.00
Long document summary (20K in, 1K out)$0.13$125.00$125,000.00
Coding agent step (50K in, 2K out)$0.30$300.00$300,000.00

At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words. Anthropic counts tokens with its own tokenizer, so the same text can be a different number of tokens.

Models with a similar price

ModelProviderInput / 1MCached input / 1MOutput / 1MTypical request
gpt-5.6OpenAI$4$0.4$20$0.014
gpt-5.6-solOpenAI$4$0.4$20$0.014
claude-opus-5-5Anthropic$4$0.2$20$0.014
claude-opus-4-5Anthropic$5$0.5$25$0.0175
claude-opus-4-6Anthropic$5$0.5$25$0.0175
claude-opus-4-7Anthropic$5$0.5$25$0.0175
claude-opus-5Anthropic$5$0.5$25$0.0175
gpt-5.5OpenAI$5$0.5$30$0.02

Other Anthropic models

Source: Anthropic pricing.