Claude Opus 4.8 vs GPT-5.4
List-price comparison · Claude Opus 4.8 details · GPT-5.4 details
For a typical workload (100,000 requests / mo), GPT-5.4 costs 44% less — $900.00/mo vs $1,600.00/mo.
| Claude Opus 4.8 | GPT-5.4 | |
|---|---|---|
| Input / 1M tokens | $5.00 | $2.50 |
| Output / 1M tokens | $25.00 | $15.00 |
| Typical request (1,200 in + 400 out) | $0.016 | $0.009 |
| Context window | 1M tokens | 1050k tokens |
| Max output | 128k tokens | 128k tokens |
| Tier | Flagship | Flagship |
| Provider | Anthropic | OpenAI |
Projected monthly cost
Rows open both models in the calculator — adjust volume and token counts there.
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.
GPT-5.4
Excellent general-purpose reasoning and broad world knowledge, with strong performance on coding, math, and multi-modal (image + file) inputs.
Output tokens are priced well above input tokens, so verbose responses dominate cost — tight max-token limits and prompt caching matter.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.