Claude Haiku 4.5 vs GPT-5.4 Mini
List-price comparison · Claude Haiku 4.5 details · GPT-5.4 Mini details
For a typical workload (100,000 requests / mo), GPT-5.4 Mini costs 16% less — $270.00/mo vs $320.00/mo.
| Claude Haiku 4.5 | GPT-5.4 Mini | |
|---|---|---|
| Input / 1M tokens | $1.00 | $0.750 |
| Output / 1M tokens | $5.00 | $4.50 |
| Typical request (1,200 in + 400 out) | $0.0032 | $0.0027 |
| Context window | 200k tokens | 400k tokens |
| Max output | 64k tokens | 128k tokens |
| Tier | Flash | Balanced |
| Provider | Anthropic | OpenAI |
Projected monthly cost
Rows open both models in the calculator — adjust volume and token counts there.
Claude Haiku 4.5
Very low latency for high-volume, simple tasks — classification, short summaries, and lightweight chat where response time matters more than depth.
Noticeably weaker on multi-step reasoning and long-context synthesis; pairing with a larger model for escalation is common.
GPT-5.4 Mini
Good default for everyday chat, summarization, and lightweight agent steps where GPT-5.4-level reasoning isn't required.
Quality gap widens on long, multi-hop reasoning tasks — needs careful prompt design to avoid silent failures on edge cases.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.