GPT-5 vs GPT-5.4
Pricing, benchmarks, and use case comparison
Quick take
- •GPT-5 is meaningfully stronger at cost efficiency (88 vs 72 on our capability index).
- •GPT-5.4 is meaningfully stronger at long context (92 vs 80).
- •GPT-5 is 50% cheaper on input tokens, which compounds fast on high-volume or agentic workloads.
- •GPT-5 has a 400,000 tokens (128,000 max output) context window vs 1,050,000 tokens (128,000 max output) - better for whole-repo or long-document work.
Specs comparison
| GPT-5 | GPT-5.4 | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Type | Closed source | Closed source |
| Context window | ✓400,000 tokens (128,000 max output) | 1,050,000 tokens (128,000 max output) |
| Input / 1M tokens | ✓$1.25 | $2.50 |
| Output / 1M tokens | $10.00 | $15.00 |
| Release date | 2025-08 | 2026-03 |
Benchmarks
| Benchmark | GPT-5 | GPT-5.4 |
|---|---|---|
| SWE-bench Verified | 74.9% | - |
| AIME 2025 | 94.6% | - |
| GPQA (GPT-5 pro) | 88.4% | - |
Scores sourced from official provider release posts and independent benchmark aggregators.
Which should you choose?
Choose GPT-5 if...
- →You want strong reasoning at the lowest frontier-model price
- →Existing GPT-5-based systems that are already tuned and validated
- →General coding, math, and reasoning workloads on a budget
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