GPT-5.4 Mini vs o4-mini
GPT-5.4 Mini and o4-mini are both current openai production-tier models. GPT-5.4 Mini leads on long-context retrieval. o4-mini leads on coding, reasoning.
Specs side by side
| Metric | OpenAI GPT-5.4 Mini | OpenAI o4-mini |
|---|---|---|
| Input price (per 1M) | $0.75 | $1.1 |
| Output price (per 1M) | $4.5 | $4.4 |
| Context window | 400k tokens | 200k tokens |
| Speed tier | fast | slow |
| Open weights | No | No |
| EU region | Yes | Yes |
| Free tier | No | No |
| Prompt caching | Yes | Yes |
| Vision input | Yes | Yes |
| Extended thinking | Yes | Yes |
When to choose each
Choose GPT-5.4 Mini if…
- You need 400k context (2× more than o4-mini)
- Low latency matters (fast vs slow)
- Long-context retrieval is central to your workload
Choose o4-mini if…
- Coding is central to your workload
- Reasoning is central to your workload
Benchmark delta
GPT-5.4 Mini leads on
- Long-context retrieval
o4-mini leads on
- Coding
- Reasoning
FAQ — GPT-5.4 Mini vs o4-mini
GPT-5.4 Mini vs o4-mini — which is better?
GPT-5.4 Mini and o4-mini are both current openai production-tier models. GPT-5.4 Mini leads on long-context retrieval. o4-mini leads on coding, reasoning. The right pick depends on your use case — see "When to choose each" above for a data-driven decision.
How does GPT-5.4 Mini pricing compare to o4-mini?
GPT-5.4 Mini costs $0.75 / $4.5 per 1M vs o4-mini at $1.1 / $4.4 per 1M. o4-mini is cheaper on output tokens by roughly 2%. Both support prompt caching, which reduces effective cost by 80-90% on repeat system prompts.
Does GPT-5.4 Mini or o4-mini have the bigger context window?
GPT-5.4 Mini has a 400k-token context window — 2× the 200k context of o4-mini. Enough for long reports and multi-document analysis.
Is there a free tier for GPT-5.4 Mini or o4-mini?
GPT-5.4 Mini: no — Near-free at $0.75/$4.50 per 1M; starter credits only. o4-mini: no — Paid-only.
Which is better for coding — GPT-5.4 Mini or o4-mini?
o4-mini leads on coding benchmarks (GPT-5.4 Mini: 84/100, o4-mini: 92/100). For production coding agents also weigh tool-use performance — GPT-5.4 Mini scores 86, o4-mini scores 88.