Comparison
Claude Opus 4.8 vs GPT-5.4 mini
Claude Opus 4.8 charges 85% more per input token than GPT-5.4 mini. GPT-5.4 mini is 82% cheaper on output tokens. Claude Opus 4.8 accepts more context per request than GPT-5.4 mini.
| Field | Claude Opus 4.8 | GPT-5.4 mini |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context window | 1M | 400K |
| Max output | 128K | 128K |
| Input / 1M | $5.00 | $0.7585% cheaper |
| Output / 1M | $25.00 | $4.5082% cheaper |
| Cached input / 1M | $0.50 | $0.07585% cheaper |
| Batch discount | 50% | 50% |
| Release date | — | 2026-03-17 |
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | Claude Opus 4.8 | GPT-5.4 mini |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $900.00 | $150.00cheaper |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $1,425 | $229.50cheaper |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $687.50 | $108.75cheaper |
Claude Opus 4.8 vs GPT-5.4 mini FAQ
- Is Claude Opus 4.8 cheaper than GPT-5.4 mini?
- Claude Opus 4.8 costs $5.00 per 1M input tokens versus $0.75 for GPT-5.4 mini — GPT-5.4 mini is 567% cheaper per input token.
- Which is cheaper for output tokens, Claude Opus 4.8 or GPT-5.4 mini?
- Claude Opus 4.8 charges $25.00 per 1M output tokens; GPT-5.4 mini charges $4.50 per 1M output tokens.
- Which has the larger context window, Claude Opus 4.8 or GPT-5.4 mini?
- Claude Opus 4.8 does, with a 1,000,000-token context window.
- Do Claude Opus 4.8 and GPT-5.4 mini offer cache pricing?
- Claude Opus 4.8 discounts cached input to $0.50 per 1M tokens. GPT-5.4 mini discounts cached input to $0.075 per 1M tokens.
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