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Claude Sonnet 4 vs Claude Opus 4.8
List-price comparison · Claude Sonnet 4 details · Claude Opus 4.8 details
For a typical workload (100,000 requests / mo), Claude Sonnet 4 costs 40% less — $960.00/mo vs $1,600.00/mo.
| Claude Sonnet 4 | Claude Opus 4.8 | |
|---|---|---|
| Input / 1M tokens | $3.00 | $5.00 |
| Output / 1M tokens | $15.00 | $25.00 |
| Typical request (1,200 in + 400 out) | $0.0096 | $0.016 |
| Context window | 1M tokens | 1M tokens |
| Max output | 64k tokens | 128k tokens |
| Tier | Flagship | Flagship |
| Provider | Anthropic | Anthropic |
Projected monthly cost
1,000 requests / month$9.60 vs $16.0010,000 requests / month$96.00 vs $160.00100,000 requests / month$960.00 vs $1,600.00
Rows open both models in the calculator — adjust volume and token counts there.
Claude Sonnet 4
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.