# GPT-5.5 vs Pearl Gemma 4 31B Instruct

Pearl Gemma 4 31B Instruct is not currently in the Allocate serving catalog, so this page lists no prices for it: every price on this site comes from the live catalog.

## Specifications

| | GPT-5.5 | Pearl Gemma 4 31B Instruct |
| --- | --- | --- |
| Lab | OpenAI | Pearl AI |
| Access | API only | Not served on Allocate |
| Context window | 400K tokens | n/a |
| List price, input | $5 / M tokens | Not served |
| List price, output | $30 / M tokens | Not served |
| Cached input | $0.50 / M tokens | n/a |
| License | Proprietary API | Not listed |
| Fine-tunable | No | Yes |

Specifications and provider list prices from the Allocate catalog, checked 2026-09-12.

## Choose GPT-5.5 for

- Complex tool-using agents
- Code generation
- General assistants

## Choose Pearl Gemma 4 31B Instruct for

- Long-document reasoning
- Open-weight fine-tuning
- Mid-size general work

## Common questions

### Which has the bigger context window?

GPT-5.5: 400,000 tokens (400K) against an unlisted window for Pearl Gemma 4 31B Instruct.

### Can I fine-tune GPT-5.5 or Pearl Gemma 4 31B Instruct?

Pearl Gemma 4 31B Instruct publishes open weights (Not listed) and can be fine-tuned on your own data. GPT-5.5 is a closed model served over API; its weights are not available.

---

[HTML page](https://allocate.network/compare/gpt-5-5-vs-pearl-gemma-4-31b-it) · [GPT-5.5](https://allocate.network/models/gpt-5-5.md) · [Pearl Gemma 4 31B Instruct](https://allocate.network/models/pearl-gemma-4-31b-it.md) · [Machine-readable catalog](https://allocate.network/catalog.json)