Models

Claude Opus 4.8 (Adaptive Reasoning, Max Effort)

AnthropicAnthropicUnited States

Anthropic is an AI research company that develops advanced language models such as Claude. Its Claude Opus 4.8 model features adaptive reasoning and is optimized for coding, agentic tasks, and long-context applications with a 1M token context window.

Input / 1M tokens
$5.00
Output / 1M tokens
$25.00
Output tokens/s
58.8
First-token seconds
28.17s
Supported plans
14

Benchmark history

Evaluations

11

Tau Banking

Measured Jul 10, 2026Source

Score

0.28

TAU2

Measured Jul 10, 2026Source

Score

0.94

Terminalbench V2 1

Measured Jul 10, 2026Source

Score

0.85

Terminalbench Hard

Measured Jul 10, 2026Source

Score

0.58

Lcr

Measured Jul 10, 2026Source

Score

0.68

Ifbench

Measured Jul 10, 2026Source

Score

0.62

Scicode

Measured Jul 10, 2026Source

Score

0.54

Hle

Measured Jul 10, 2026Source

Score

0.46

Gpqa

Measured Jul 10, 2026Source

Score

0.92

Artificial Analysis Coding Index

Measured Jul 10, 2026Source

Score

74.3

Artificial Analysis Intelligence Index

Measured Jul 10, 2026Source

Score

55.7

Plan availability

Products and plans that support this model

2

User ratings

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