Model comparison
GPT-5.4 vs GPT-5.2
- Input
- $2.50 / 1M tokens
- Output
- $15.00 / 1M tokens
- Context
- 1M
- Released
- 2026-03-05
- Input
- $1.75 / 1M tokens
- Output
- $14.00 / 1M tokens
- Context
- 400K
- Released
- 2025-12-11
GPT-5.4 scores higher on 1 of the 1 benchmarks both models report; GPT-5.2 is cheaper on input tokens ($1.8 vs $2.5 per 1M, 1.4×); GPT-5.4 has the larger context window (1M vs 400K).
Specs and pricing side by side
| Spec | GPT-5.4 | GPT-5.2 |
|---|---|---|
| Maker | OpenAI | OpenAIsame |
| Released | 2026-03-05 | 2025-12-11 |
| Context window | 1M | 400K |
| Max output | 128K | 128Ksame |
| Input price | $2.50 / 1M tokens | $1.75 / 1M tokens |
| Output price | $15.00 / 1M tokens | $14.00 / 1M tokens |
| Parameters | not published | Not disclosed by OpenAI |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision | Text, Visionsame |
| Knowledge cutoff | Not publicly disclosed | August 31, 2025 |
Benchmarks both models report
| Benchmark | GPT-5.4 | GPT-5.2 |
|---|---|---|
| GDPval | 83% | 70.9% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick GPT-5.4 if…
- You care about GDPval (it scores higher on 1 shared benchmark).
- You need the longer context (1M vs 400K).
- Your use case is: agentic coding and software engineering over large repositories.
Pick GPT-5.2 if…
- Cost matters: input tokens cost 1.4× less ($1.8 vs $2.5 per 1M).
- Your use case is: long-running autonomous agents and multi-step workflows that need a large context window and reliable tool use.
FAQ
Which is better, GPT-5.4 or GPT-5.2?
GPT-5.4 scores higher on 1 of the 1 benchmarks both models report; GPT-5.2 is cheaper on input tokens ($1.8 vs $2.5 per 1M, 1.4×); GPT-5.4 has the larger context window (1M vs 400K). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is GPT-5.2?
GPT-5.4: $2.50 / 1M tokens input, $15.00 / 1M tokens output. GPT-5.2: $1.75 / 1M tokens input, $14.00 / 1M tokens output (list API prices as published by each maker).
What are the context windows of GPT-5.4 and GPT-5.2?
GPT-5.4 offers 1M with up to 128K output; GPT-5.2 offers 400K with up to 128K output.
Is GPT-5.4 newer than GPT-5.2?
GPT-5.4 was released 2026-03-05; GPT-5.2 was released 2025-12-11.