GPT-4o vs GPT-5.4
Pricing, benchmarks, and use case comparison
Quick take
- •GPT-4o is meaningfully stronger at speed (85 vs 66 on our capability index).
- •GPT-5.4 is meaningfully stronger at long context (92 vs 55).
- •GPT-4o has a 128,000 tokens (16,384 max output) context window vs 1,050,000 tokens (128,000 max output) - better for whole-repo or long-document work.
Specs comparison
| GPT-4o | GPT-5.4 | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Type | Closed source | Closed source |
| Context window | ✓128,000 tokens (16,384 max output) | 1,050,000 tokens (128,000 max output) |
| Input / 1M tokens | $2.50 | $2.50 |
| Output / 1M tokens | $10.00 | $15.00 |
| Release date | 2024-05 | 2026-03 |
Benchmarks
| Benchmark | GPT-4o | GPT-5.4 |
|---|---|---|
| MMLU | 88.7% | - |
| HumanEval | 90.2% | - |
| MATH | 76.6% | - |
Scores sourced from official provider release posts and independent benchmark aggregators.
Which should you choose?
Choose GPT-4o if...
- →Everyday assistant, drafting, summarization, and classification tasks
- →Latency- and cost-sensitive applications at scale
- →Multimodal tasks needing image understanding with fast responses
Choose GPT-5.4 if...
- →Large-context tasks where GPT-5.5-level frontier reasoning is not required
- →Cost-conscious production workloads that still need strong capability
- →Migrating from GPT-5.4-based systems where behavior is already tuned