morgankrey cc2c2ceee4 Add GPT-5.5 and GPT-5.5 pro model documentation (#55795)
## Summary

- Add pricing table entries for GPT-5.5 and GPT-5.5 pro
- Add context window entries for GPT-5.5/5.5 pro (272k)
- Fix context window values for all OpenAI models from 400k to 272k to
match actual cloud-enforced limit
- Update student plan note to exclude GPT-5.5 pro
- Update page description

Follows up on #54820 which added code support for GPT-5.5 models.

The 272k limit is enforced in the cloud due to context-tiered pricing
not yet being implemented.

## Test plan

- [ ] Verify pricing matches cloud repo configuration
- [ ] Check docs render correctly

Release Notes:

- N/A
2026-05-05 17:17:59 +00:00
2026-04-30 11:10:14 +00:00
2026-05-04 10:31:07 +00:00
2026-01-22 23:57:26 +05:30
2026-05-04 06:30:47 +00:00
WIP
2023-12-14 09:25:14 -07:00
2026-04-29 10:27:47 +00:00
2026-02-03 20:31:02 -07:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2026-01-06 12:49:51 -08:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00
2026-03-17 16:34:35 +00:00
2026-04-29 10:27:47 +00:00

Zed

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