GPT-5.5 Pro vs GPT-5 Turbo
Side-by-side comparison. Updated 2026-06-04.
Verdict
GPT-5.5 Pro wins on higher overall score (9.5 vs 9.1, +0.4).
- Larger context window (1050k vs 128k)
At a Glance
| Attribute | GPT-5.5 Pro | GPT-5 Turbo |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Tags | Reasoning | general |
| Context | 1,050,000 tokens | 128,000 tokens |
| Input price | $30.00/1M | $2.00/1M |
| Output price | $10.00/1M | $10.00/1M |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
GPT-5.5 Pro Strengths
GPT-5 Turbo Strengths
- Same architecture as GPT-5 at lower latency
- Cost-effective for high-volume production ($2/M input)
- Strong coding performance for a speed-optimized variant
- Good for real-time chat and interactive applications
- Reliable structured output like the base GPT-5