Migrate off GPT-4.1 nano
RetiredGPT-4.1 nano has been retired and shut down on 23 Oct 2026. OpenAI's official replacement is GPT-5.6 Luna. The cheapest comparable model we track is Llama 4 Scout (17B-16E Instruct) (Meta) at $0.15 per 1M tokens blended.
Last verified: 24 Oct 2026 · sourced from official provider documentation
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GPT-4.1 nano → GPT-5.6 Luna
Moving to GPT-5.6 Luna means 2.6× more expensive ($0.175 → $0.45 /1M blended) and a larger context window (1.0M → 1.1M).
| Spec | GPT-4.1 nano | GPT-5.6 Luna |
|---|---|---|
| Status | Retired | GA |
| Blended price /1M | $0.175 | $0.45 |
| Input / output /1M | $0.1 / $0.4 | $0.2 / $1.20 |
| Context window | 1.0M | 1.1M |
| Max output | 32.768 | 128.000 |
| Modality | text, image | text, image |
| Knowledge cutoff | 1 Jun 2024 | 16 Feb 2026 |
API string was gpt-4.1-nano-2025-04-14 → switch to gpt-5.6-luna. See GPT-5.6 Luna's full spec sheet →
Budget-friendly replacements for GPT-4.1 nano
Generally-available models that match GPT-4.1 nano's capabilities (and at least half its 1.0M context), ranked by blended price. Every number is computed from official catalog prices.
| Model | Blended /1M | Input / output | Context |
|---|---|---|---|
| Llama 4 Scout (17B-16E Instruct) Meta | $0.15 | $0.1 / $0.3 | 10M |
| Gemini 2.5 Flash-Lite Google | $0.175 | $0.1 / $0.4 | 1.0M |
| Qwen3.5-Flash Alibaba | $0.175 | $0.1 / $0.4 | 1M |
Migrating off GPT-4.1 nano
What replaces GPT-4.1 nano?
OpenAI's recommended migration for GPT-4.1 nano is GPT-5.6 Luna. The cheapest comparable model in our catalog is Llama 4 Scout (17B-16E Instruct) (Meta) at $0.15/1M blended.
Is GPT-4.1 nano still available?
No — GPT-4.1 nano has been retired (shut down 23 Oct 2026) and is no longer available via OpenAI's API.
What is the cheapest alternative to GPT-4.1 nano?
Llama 4 Scout (17B-16E Instruct) (Meta) is the cheapest generally-available alternative we track that matches GPT-4.1 nano's capabilities, at $0.1 per 1M input and $0.3 per 1M output tokens ($0.15/1M blended).
Browse the full deprecation watch → or see GPT-4.1 nano's full spec sheet →
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The last few changes we caught — this is what lands in your inbox:
- RetiringO4-mini is off - OpenAI shut it down on October 23, 2026, as scheduled; migrate to gpt-5.6-terra
- RetiringO3-mini is off - OpenAI shut it down on October 23, 2026, as scheduled; migrate to gpt-5.6-sol
- RetiringO1-pro is off - OpenAI shut it down on October 23, 2026, as scheduled; migrate to gpt-5.6-sol
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