Quick answer. Claude Opus 4.8 has a weighted score of 81, Truth Score 92, privacy 95 and safety 96. The API rate is $5 in and $25 out per million tokens. It is not self-hostable. Choose it for complex analysis and long-form research when truth and privacy outrank cost efficiency of 62.
Claude Opus 4.8 is Anthropic's frontier row in the published Best AI Match dataset, ranked 13 of 21 with a weighted score of 81. This profile decides whether high-stakes analysis and long-form research justify the premium rate card. It is not a claim that Opus always beats Sonnet, and it does not report a private lab test. Task performance is 91. Truth Score is 92. Safety is 96 and privacy is 95. Cost efficiency is 62, the weakest cost mark among the Wave 2 profiles. Context is a 200,000-token window, scored 88. Speed is 52. The model is not self-hostable and jurisdiction is the United States. API rates are $5 per million input tokens and $25 per million output tokens. GDPR, HIPAA and SOC 2 are marked true. Perspective Score is minus 8 and stays outside the weighted score. Best-fit jobs in the dataset are complex analysis, extended thinking tasks, high-stakes decisions and long-form research. If the brief needs those marks and the budget can absorb the rate, start here. If the job is high-volume drafting, the scorecard's cost lens points to a cheaper Anthropic or other row.
Why this profile is about stakes, not rank
Rank 13 with a weighted score of 81 looks middling until you separate the lenses. Task is 91, truth is 92, privacy is 95 and safety is 96. Cost efficiency is 62. The composite is pulled down by price and speed 52, not by reliability. That is why this page is for high-stakes analysis, not for the cheapest customer-service draft. Pair it with best AI for research and the workhorse profile for Claude Sonnet 4.6 when volume matters more than the frontier rate.
| Reliability and cost lens | Published figure |
|---|---|
| Truth Score | 92 |
| Safety | 96 |
| Privacy | 95 |
| Weighted score (rank 13 of 21) | 81 |
| Task performance | 91 |
| Context window (context score 88) | 200,000 |
| Speed | 52 |
| Cost efficiency | 62 |
| API price, input / output per million | $5 / $25 |
| Perspective Score (excluded) | −8 |
Figures from /data/ai-comparison-2026.json. Last verified 2026-06-26. Scoring version v1.0. Affiliate links are off.
The premium rate card
Cost efficiency is 62 at $5 and $25 per million tokens. That is the steepest Wave 2 rate card on this index. Run the volume through the token cost calculator before you treat the sticker as a staffing plan. Enterprise privacy spend is a separate decision on how much enterprise AI privacy costs.
Privacy and high-stakes flags
Privacy is 95. GDPR, HIPAA and SOC 2 are true. Jurisdiction is the United States. The model is not self-hostable, so privacy here is a provider-policy score. A high Truth Score still leaves binding legal or clinical answers with a qualified person — see legal and medical hallucination risk and when to block final decisions.
Perspective is disclosed
Perspective Score is −8. It does not move the weighted score. Best-fit jobs in the record are complex analysis, extended thinking, high-stakes decisions and long-form research. The official site is anthropic.com/claude, linked as the provider page while affiliates stay off.
Still matching a job? Run the match engine, or open Claude Sonnet 4.6 when the workhorse price fits better than the frontier rate.
FAQ
What is Claude Opus 4.8's Truth Score?
The published Truth Score is 92, last verified 2026-06-26. Safety is 96 and privacy is 95 on the same record.
What does the Claude Opus 4.8 API cost?
The dataset lists $5 per million input tokens and $25 per million output tokens.
Does a high Truth Score authorize final decisions?
No. Truth Score is a drafting reliability mark. Binding outcomes stay with a named person.