Claude Opus 4.8
Anthropic
The Claude Opus generation Claude Opus 5 superseded. Anthropic still lists it as available and recommends migrating, but it remains on the same $5/$25 pricing and 1M context window as its successor.
Pricing & specs verifiedSource: vendor documentation · checked Sep 3, 2026LMArena: 1473 (rank 35) · leaderboard · retrieved Sep 13, 2026
Pricing
$5 / $25 per 1M tokens
Context
1M tokens
LMArena Elo
1473
Overall rank
#35
Key Features
Agentic Coding Adaptive Thinking Vision Long Context Tool Use 128k Max Output
Full Specifications
$5 / $25 per 1M tokens | |
|---|---|
| Identity | |
| Developer | Anthropic |
| Released | Apr 2026 |
| Status | Available (legacy) |
| Licence | Proprietary |
| Self-hostable | No |
| Cost | |
| Blended $/1M tokensinput × 0.75 + output × 0.25 | $10.000 / 1M tokens |
| Input price | $5.000 / 1M tokens |
| Output price | $25.000 / 1M tokens |
| Cached input | $0.50 / 1M tokens (cache hit) |
| Batch discount | 50% off input/output (Batch API) |
| Free tier | Small trial credit for new accounts, no ongoing free tier |
| Capacity | |
| Context window | 1M tokens |
| Max output | 128k tokens |
| Long-context surcharge | None (full 1M window at standard pricing) |
| Capability | |
| Vision in | Yes |
| Audio in | No |
| Function calling | Yes |
| Structured output | Yes |
| Extended reasoning | No (adaptive thinking) |
| Web search | Yes |
| Code execution | Yes |
| Access | |
| API | Yes |
| Chat app | Yes |
| Cloud marketplaces | AWS Bedrock, Google Cloud, Microsoft Foundry |
| Fine-tuning | No |
| Measured quality | |
| LMArena Elo | 1473 (checked Sep 2026) |
| LMArena rank | Rank 35 |
| Elo per dollarLMArena Elo ÷ blended $/1M tokens | 147 |