Model comparison
GPT-5 vs GPT-4o
- Input
- $1.25 / 1M tokens
- Output
- $10.00 / 1M tokens
- Context
- 400K
- Released
- 2025-08-07
- Input
- $5.00
- Output
- $15.00
- Context
- 128K
- Released
- 2024-05-13
GPT-5 is cheaper on input tokens ($1.3 vs $5 per 1M, 4×); GPT-5 has the larger context window (400K vs 128K).
Specs and pricing side by side
| Spec | GPT-5 | GPT-4o |
|---|---|---|
| Maker | OpenAI | OpenAIsame |
| Released | 2025-08-07 | 2024-05-13 |
| Context window | 400K | 128K |
| Max output | 128K | 16K |
| Input price | $1.25 / 1M tokens | $5.00 |
| Output price | $10.00 / 1M tokens | $15.00 |
| Parameters | Not disclosed | Not disclosedsame |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision | Text, Image, Audio, Vision |
| Knowledge cutoff | September 30, 2024 | October 2023 |
Benchmarks both models report
These two models have no benchmark in common in our registry, so there is no like-for-like score to compare. See each model’s own results: GPT-5, GPT-4o.
Which one should you pick?
Pick GPT-5 if…
- Cost matters: input tokens cost 4× less ($1.3 vs $5 per 1M).
- You need the longer context (400K vs 128K).
- Your use case is: agentic coding: multi-step bug fixing, refactoring, and pull-request-scale changes across a repository.
Pick GPT-4o if…
- You need Image / Audio input, which GPT-5 lacks.
- Your use case is: real-time voice assistants and conversational agents (Advanced Voice Mode).
FAQ
Which is better, GPT-5 or GPT-4o?
GPT-5 is cheaper on input tokens ($1.3 vs $5 per 1M, 4×); GPT-5 has the larger context window (400K vs 128K). 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?
GPT-5: $1.25 / 1M tokens input, $10.00 / 1M tokens output. GPT-4o: $5.00 input, $15.00 output (list API prices as published by each maker).
What are the context windows of GPT-5 and GPT-4o?
GPT-5 offers 400K with up to 128K output; GPT-4o offers 128K with up to 16K output.
Is GPT-5 newer than GPT-4o?
GPT-5 was released 2025-08-07; GPT-4o was released 2024-05-13.