Deprecations

Overview

Model providers retire older models from time to time, and HopBase also retires IDs that stay unstable or have been superseded by newer versions. Code that depends on a specific model ID may occasionally need an update to keep working. This page lists every retired model ID with its recommended replacement; for new models and price changes, see the Model changelog.

Retirement policy

• Advance notice: when a model provider announces a retirement in advance, HopBase passes it on here and in the Model changelog as soon as it is received.
• After retirement: the ID is removed from GET /v1/models, and requests return 404 model_not_found. If an entire group is taken offline, requests return 404 group_offline.
• Migrating: change the model ID in your requests to the replacement. Unless an entry says otherwise, the Base URL, API key, and request format stay the same.
• Old pages stay available: integration pages for retired models keep their direct links, marked "Discontinued" at the top with the replacement.

Upcoming retirements

No retirements are currently announced.

Retired models

2026-09-25: Kimi K3

Keys from the former Kimi K3 group now get 404 group_offline; switch to a key from another group. See Kimi K3 (discontinued).

2026-09-20: Claude 4.5 series

Calls work the same way; see Anthropic SDK.

2026-08-25: DeepSeek V4 Flash (undated ID)

See DeepSeek V4.1 / V4.

2026-08-19: GLM-5.2

See GLM-5.3. The old GLM-5.2 (discontinued) page is still available by direct link.

Retirements before 2026-08-14 aren't listed.