claude-opus-4.8 · Anthropic
Anthropic frontier reasoning route with multimodal input and a 1M-token context window.
Last checked Aug 26, 2026. Calculations use the listed base rates; provider-specific tiers, cache writes, batch pricing, and long-context rules may differ. Note: Live OpenRouter route snapshot checked 26 Aug 2026. Direct Anthropic pricing and availability may differ. Confirm the current rate at the official provider source.
Input
$5.00
per 1M tokens
Output
$25.00
per 1M tokens
Cached input
$0.50
per 1M tokens
Context window
1M
max output 128K
Claude Opus 4.8 (OpenRouter) cost calculator
What Claude Opus 4.8 (OpenRouter) costs per task
| Use case | Input tokens | Output tokens | Cost / request | Monthly @ 1K req/day |
|---|---|---|---|---|
| Customer support chatbot | 3,500 | 350 | $0.0152 | $456.75 |
| RAG / search-augmented answers | 8,000 | 500 | $0.0345 | $1,035.00 |
| AI coding assistant | 12,000 | 2,000 | $0.0776 | $2,328.00 |
| Document summarization | 25,000 | 600 | $0.1287 | $3,862.50 |
| Agentic workflow | 40,000 | 1,500 | $0.1205 | $3,615.00 |
| Content generation | 800 | 1,200 | $0.0329 | $987.60 |
| Data extraction & tagging | 2,000 | 250 | $0.0145 | $433.50 |
| Translation | 5,000 | 5,500 | $0.1591 | $4,773.75 |
Assumes each use case's typical cacheable share of input. See full cost scenarios.
Compare with alternatives
| Model | Input /M | Output /M | Context | Chat request* |
|---|---|---|---|---|
| Claude Opus 4.8 (OpenRouter) | $5.00 | $25.00 | 1M | $0.031 |
| GPT-5.6 Solcompare | $5.00 | $30.00 | 1.1M | $0.035 |
| GPT-5.6 Terracompare | $2.00 | $12.00 | 1.1M | $0.014 |
| GPT-5.6 Lunacompare | $0.20 | $1.20 | 1.1M | $0.0014 |
| GPT-5.6 Cybercompare | $12.50 | $75.00 | 1.1M | $0.0875 |
| GPT-5.5 Standardcompare | $5.00 | $30.00 | 512K | $0.035 |
| GPT-5.5 Procompare | $30.00 | $180.00 | 512K | $0.21 |
| GPT-5.4 Workhorsecompare | $2.50 | $15.00 | 256K | $0.0175 |
| GPT-5.4 minicompare | $0.75 | $4.50 | 256K | $0.00525 |
*4,000 in + 800 out tokens, 50% cached input where available.
Related calculations
FAQ
Claude Opus 4.8 (OpenRouter) costs $5.00 per 1M input tokens and $25.00 per 1M output tokens, with cached input at $0.50 per 1M tokens. Verified Aug 26, 2026 against https://openrouter.ai/api/v1/models.
Claude Opus 4.8 (OpenRouter) supports a 1,000,000-token context window with up to 128,000 output tokens per request, tokenized with claude_bpe.
At $5.00/M input and $25.00/M output, Claude Opus 4.8 (OpenRouter) sits below GPT-5.6 Sol ($5.00/M in, $30.00/M out) — see the comparison table for full-workload differences.