DEPRECATED
Retired 2026-10-23 — 8 days ago. Requests to this identifier are expected to fail. The provider names gpt-5.6-luna as the replacement. Sources disagree on: max_output_tokens.
state=dead sunset=2026-10-23 days_remaining=-8 severity=critical sources=docs,litellm,openrouter evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-5.6-luna corroborated=yes divergent_fields=max_output_tokens checked=2026-10-31 05:09Z
openai/gpt-4.1-nano
Vendor: openai. Tracked by 3 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| docs | gpt-4.1-nano | — | — | — | — | 2026-10-23 |
| litellm | azure/gpt-4.1-nano | 1,047,576 | 32,768 | $0.1 | $0.4 | 2026-10-23 |
| openrouter | openai/gpt-4.1-nano | 1,047,576 | 942,818 | $0.1 | $0.4 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| high | modified | openai/gpt-4.1-nano: capabilities lost max_tokens | 2026-10-28 |
| low | modified | openai/gpt-4.1-nano: max_output_tokens raised 32,768 to 942,818 | 2026-10-26 |
| low | repriced | openai/gpt-4.1-nano: cache_read_price_per_mtok $0.03/Mtok to $0.03/Mtok | 2026-10-26 |
| info | deprecated | gpt-4.1-nano: deprecation announced for 2026-04-22 (date already passed) | 2026-10-17 |
| info | deprecated | gpt-4.1-nano: deprecation announced for 2026-04-22 (date already passed) | 2026-10-13 |
| medium | removed | [one catalog only — docs, litellm, openrouter still list it] openrouter/openai/gpt-4.1-nano is no longer listed by this source — calls to it are expected to fail | 2026-10-09 |
| medium | deprecated | azure/eu/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 194 days | 2026-10-02 |
| medium | deprecated | azure/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 194 days | 2026-10-02 |
| medium | deprecated | azure/us/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 194 days | 2026-10-02 |
| critical | deprecated | azure/eu/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 13 days | 2026-10-01 |
| critical | deprecated | azure/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 13 days | 2026-10-01 |
| critical | deprecated | azure/us/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 13 days | 2026-10-01 |
| medium | deprecated | azure/eu/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 202 days | 2026-09-24 |
| medium | deprecated | azure/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 202 days | 2026-09-24 |
| medium | deprecated | azure/us/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 202 days | 2026-09-24 |
| critical | deprecated | azure/eu/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 20 days | 2026-09-24 |
| critical | deprecated | azure/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 20 days | 2026-09-24 |
| critical | deprecated | azure/us/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 20 days | 2026-09-24 |
| medium | deprecated | azure/eu/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 207 days | 2026-09-19 |
| medium | deprecated | azure/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 207 days | 2026-09-19 |
| medium | deprecated | azure/us/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 207 days | 2026-09-19 |
| low | modified | openrouter/openai/gpt-4.1-nano: capabilities gained web_search | 2026-09-19 |
| medium | deprecated | azure/eu/gpt-4.1-nano: retires 2027-04-14 (in 207 days) | 2026-09-19 |
| medium | deprecated | azure/us/gpt-4.1-nano: retires 2027-04-14 (in 207 days) | 2026-09-19 |
| low | modified | openrouter/openai/gpt-4.1-nano: capabilities gained pdf_input | 2026-09-18 |
| critical | deprecated | azure/eu/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 26 days | 2026-09-18 |
| critical | deprecated | azure/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 26 days | 2026-09-18 |
| critical | deprecated | azure/us/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 26 days | 2026-09-18 |
| critical | deprecated | azure/eu/gpt-4.1-nano: retires 2026-10-14 (in 26 days) | 2026-09-18 |
| critical | deprecated | azure/us/gpt-4.1-nano: retires 2026-10-14 (in 26 days) | 2026-09-18 |
| low | added | new model azure/eu/gpt-4.1-nano | 2026-09-16 |
| low | added | new model azure/us/gpt-4.1-nano | 2026-09-16 |
| high | modified | openai/gpt-4.1-nano: max_output_tokens cut 942,818 to 32,768 | 2026-08-30 |
| info | repriced | openai/gpt-4.1-nano: cache_read_price_per_mtok $0.03/Mtok to $0.03/Mtok | 2026-08-30 |
| low | modified | openai/gpt-4.1-nano: max_output_tokens raised 32,768 to 942,818 | 2026-08-28 |
| low | repriced | openai/gpt-4.1-nano: cache_read_price_per_mtok $0.03/Mtok to $0.03/Mtok | 2026-08-28 |
| medium | deprecated | azure/gpt-4.1-nano: deprecation announced for 2027-04-14 — in 229 days | 2026-08-28 |
| medium | deprecated | azure/gpt-4.1-nano: retires 2027-04-14 (in 229 days) | 2026-08-28 |
| high | deprecated | azure/gpt-4.1-nano: deprecation announced for 2026-10-14 — in 54 days | 2026-08-21 |
| high | deprecated | azure/gpt-4.1-nano: retires 2026-10-14 (in 54 days) | 2026-08-21 |