GPT-5.4 vs Claude Opus 4.8
How GPT-5.4 (OpenAI) and Claude Opus 4.8 (Anthropic) compare on price, context window and best-fit use case.
In short: GPT-5.4 is best for Most production apps wanting near-flagship quality at roughly half the flagship price, while Claude Opus 4.8 suits Complex coding agents, long-horizon tasks, and workloads needing top reliability and reasoning. On price it's $2.50 vs $5.00 per 1M input tokens; on context, ~1M tokens (922K input, 128K output) vs 1M tokens.
| Spec | GPT-5.4 | Claude Opus 4.8 |
|---|---|---|
| Developer | OpenAI | Anthropic |
| Context window | ~1M tokens (922K input, 128K output) | 1M tokens |
| Input price /1M | $2.50 | $5.00 |
| Output price /1M | $15.00 | $25.00 |
| Modalities | text, image | text, image |
| Best for | Most production apps wanting near-flagship quality at roughly half the flagship price. | Complex coding agents, long-horizon tasks, and workloads needing top reliability and reasoning. |
GPT-5.4
- Excellent price-to-performance
- Strong reasoning and coding
- 1M context
- Mature ecosystem and tooling
Claude Opus 4.8
- Best-in-class coding and agentic tasks
- Adaptive reasoning with effort controls
- 1M context at flat rate
- Strong instruction following and safety