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Claude Opus 5 (Fast) vs Claude Opus 4.8
List-price comparison ·Claude Opus 5 (Fast) details ·Claude Opus 4.8 details
For a typical workload (100,000 requests / mo), Claude Opus 4.8 is the cheapest — 50% less than the priciest here ($1,600.00/mo vs $3,200.00/mo).
| Claude Opus 5 (Fast) | Claude Opus 4.8 | |
|---|---|---|
| Input / 1M tokens | $10.00 | $5.00 |
| Output / 1M tokens | $50.00 | $25.00 |
| Typical request (1,200 in + 400 out) | $0.032 | $0.016 |
| Context window | 1M tokens | 1M tokens |
| Max output | 128k tokens | 128k tokens |
| Quality score | 92/100 | 97/100 |
| Tier | Flash | Flagship |
| Provider | Anthropic | Anthropic |
Projected monthly cost
| Requests / mo | Claude Opus 5 (Fast) | Claude Opus 4.8 |
|---|---|---|
| 1,000 | $32.00 | $16.00 |
| 10,000 | $320.00 | $160.00 |
| 100,000 | $3,200.00 | $1,600.00 |
Claude Opus 5 (Fast)
Auto-synced from OpenRouter — no editorial write-up yet.
Claude Opus 4.8
Best-in-class for complex multi-step agentic workflows, long-horizon planning, and large codebase refactors. Strong instruction-following on ambiguous, open-ended tasks.
Highest per-token cost in the catalog and noticeably higher latency — reserve for tasks that genuinely need top-tier reasoning rather than routine completions.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.