Major Release Anthropic · Released
Claude Opus 4.8
What is Claude Opus 4.8?
Claude Opus 4.8 is a Major Release AI model from Anthropic, released on May 28, 2026. It has a 1M tokens context window, costs $6.25 per million input tokens, and scores 94.4% on TAU2-bench. It is available via the company's API.
Anthropic Claude Opus 4.8 — AA Intelligence Index 61.4, 1M tokens context, reasoning model.
How much does Claude Opus 4.8 cost?
| Metric | Price |
|---|---|
| input per mtok | $6.25 |
| output per mtok | $25.00 |
| cache read per mtok | $0.50 |
Pricing data verified .
What context window does Claude Opus 4.8 have?
- Context window
- 1M tokens
- Max output
- 128K
- Input modalities
- text, image
- Output modalities
- text
How does Claude Opus 4.8 score on benchmarks?
| Benchmark | Score |
|---|---|
| GPQA Diamond | 92.0% |
| HLE | 45.7% |
| SciCode | 53.5% |
| TAU2-bench | 94.4% |
| TerminalBench-Hard | 58.3% |
| IF-Bench | 62.2% |
| LiveCodeBench Reasoning | 67.7% |
| AA Intelligence Index | 61.4 |
Benchmark scores verified .