RETIRING IN 200 DAYS
Sunset scheduled for 2027-05-19, reported by a third-party catalog. The identifier still resolves today.
state=dying sunset=2027-05-19 days_remaining=200 severity=high sources=litellm evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=single-source divergent_fields=none checked=2026-10-31 05:09Z
xai/grok-4-1-fast-non-reasoning
Vendor: xai. Tracked by 1 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| litellm | azure_ai/grok-4-1-fast-non-reasoning | 128,000 | 128,000 | $0.2 | $0.5 | 2027-05-19 |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| medium | deprecated | azure_ai/grok-4-1-fast-non-reasoning: deprecation announced for 2027-05-19 — in 203 days | 2026-10-28 |
| medium | deprecated | azure_ai/grok-4-1-fast-non-reasoning: retires 2027-05-19 (in 203 days) | 2026-10-28 |
| high | modified | azure_ai/grok-4-1-fast-non-reasoning: context_tokens cut 131,072 to 128,000 | 2026-09-30 |
| high | modified | azure_ai/grok-4-1-fast-non-reasoning: max_output_tokens cut 131,072 to 128,000 | 2026-09-30 |
| medium | removed | [one catalog only — litellm still list it] xai/grok-4-1-fast-non-reasoning is no longer listed by this source — calls to it are expected to fail | 2026-09-23 |
| medium | repriced | xai/grok-4-1-fast-non-reasoning: input_price_per_mtok $0.20/Mtok to $1.25/Mtok | 2026-08-30 |
| medium | repriced | xai/grok-4-1-fast-non-reasoning: output_price_per_mtok $0.50/Mtok to $2.50/Mtok | 2026-08-30 |
| medium | repriced | xai/grok-4-1-fast-non-reasoning: cache_read_price_per_mtok $0.05/Mtok to $0.20/Mtok | 2026-08-30 |
| info | deprecated | xai/grok-4-1-fast-non-reasoning: retires 2026-05-15 (78 days ago) | 2026-08-01 |
| info | deprecated | xai/grok-4-1-fast-non-reasoning: deprecation announced for 2026-05-15 (date already passed) | 2026-06-05 |