Identity
- Status
- active
- Developer ID
gpt-4.1-nano-2025-04-14- Released
- Not reported
- Version
- GPT-4.1 Nano
- License
- Unknown
OpenAIGPT-4.1 Nano
GPT-4.1 Nano is the fastest, most cost-efficient GPT-4.1 model.
- Context
- 1,047,576 tokens
- Inputs
- Text, Image
- Outputs
- Text
- Released
- Not reported
Providers & Pricing
Estimate workload cost →| Provider | Input / 1M | Output / 1M | Cache read / 1M | Cache write / 1M | Observed | Evidence |
|---|---|---|---|---|---|---|
OpenAIAvailable | $0.10 | $0.40 | $0.025 | — | Aug 29, 2026 | Provider-reported |
 OpenrouterAvailable | $0.050 | $0.20 | $0.0125 | — | Sep 2, 2026 | Provider-reported |
OpenrouterAvailable | $0.10 | $0.40 | $0.025 | — | Sep 2, 2026 | Provider-reported |
Benchmarks
All benchmark results →| GPT-4.1 NanoOpenAI | Aider Polyglotpolyglot-225-5dc9490bb35f | 8.89 | — | 225 | whole; aider 0.81.4.devunknown | Recomputedwinner eligible | Third-party benchmark |
| GPT-4.1 NanoOpenAI | Berkeley Function Calling Leaderboardv4-ede5081a24bc | 33.05 | — | — | GPT-4.1-nano-2025-04-14 (FC)unknown | Recomputedwinner eligible | Third-party benchmark |
| GPT-4.1 NanoOpenAI | Berkeley Function Calling Leaderboardv4-ede5081a24bc | 24.88 | — | — | GPT-4.1-nano-2025-04-14 (Prompt)unknown | Recomputedwinner eligible | Third-party benchmark |
| GPT-4.1 NanoOpenAI | LMArena Text Arenatext-2026-09-01-011508720696 | 1,284.64 | — | 6,103 | gpt-4.1-nano-2025-04-14; 95% CI [1276.99177350, 1292.27849322]; votes 6103; rank 246unknown | Original sourcewinner eligible | Third-party benchmark |
| GPT-4.1 NanoOpenAI | LMArena Vision Arenavision-2026-08-27-011508720696 | 1,063.23 | — | 1,211 | gpt-4.1-nano-2025-04-14; 95% CI [1044.95116252, 1081.50991534]; votes 1211; rank 120unknown | Original sourcewinner eligible | Third-party benchmark |
At a Glance
Model Facts
Capacity
- Context
- 1,047,576 tokens
- Maximum output
- 32,768 tokens
- Total parameters
- Unknown
- Active parameters
- Unknown
- Knowledge cutoff
- Jun 1, 2024
Interface and Access
- Inputs
- Text, Image
- Outputs
- Text
- API available
- Yes
- Open weights
- No
- Self-hostable
- No
- Reasoning
- No
- Vision
- Yes
- Tool calling
- Yes
- Capabilities
- chat, generation, tools
This page represents one immutable developer model ID. Serving endpoints, pricing, regions, quantizations, and service tiers attach separately and never create duplicate model records.
Version Lineage
PredecessorUnknown
SuccessorsUnknown
Aliasesgpt-4.1-nano, gpt-4.1-nano-2025-04-14
Explicit Unknowns
- Release date
- Architecture
- Tokenizer
Primary Evidence
Sources and Observation Date
Comparable Peers
Related Model Comparisons
| A | Pair | B | Context |
|---|---|---|---|
GPT-4.1 NanoOpenAI | vs | GPT-4oOpenAI | family variantsimage, text |
GPT-4.1 NanoOpenAI | vs | GPT-4o MiniOpenAI | family variantsimage, text |
GPT-4.1 NanoOpenAI | vs | GPT-5.6 LunaOpenAI | family variantsimage, text |
GPT-4.1 NanoOpenAI | vs | GPT-5.6 SolOpenAI | family variantsimage, text |
GPT-4.1 NanoOpenAI | vs |  Mistral-Small-4-119B-2603Mistral AI | cross-developer peersimage, text |
GPT-4.1 NanoOpenAI | vs | Claude Fable 5Anthropic | cross-developer peersimage, text |
GPT-4.1 NanoOpenAI | vs | Claude Opus 4.8Anthropic | cross-developer peersimage, text |
GPT-4.1 NanoOpenAI | vs | cross-developer peersimage, text | |
GPT-4.1 NanoOpenAI | vs |  Gemini 2.5 Flash-LiteGoogle DeepMind | cross-developer peerstext |
GPT-4.1 NanoOpenAI | vs | Gemini 2.5 ProGoogle DeepMind | cross-developer peerstext |
GPT-4.1 NanoOpenAI | vs | Gemini 3 FlashGoogle DeepMind | cross-developer peerstext |
GPT-4.1 NanoOpenAI | vs | Gemini Deep Research MaxGoogle DeepMind | cross-developer peerstext |
Questions
GPT-4.1 Nano FAQs
What is GPT-4.1 Nano?+
GPT-4.1 Nano is the fastest, most cost-efficient GPT-4.1 model. It is developed by OpenAI and its current sourced lifecycle status is active.
What inputs and outputs does GPT-4.1 Nano support?+
GPT-4.1 Nano's current record lists Text and Image as input and Text as output.
How much context does GPT-4.1 Nano support?+
The current record lists a 1,047,576-token context window and a maximum output of 32,768 tokens.
Is GPT-4.1 Nano available through an API?+
GPT-4.1 Nano is marked as API-available. The directly sourced provider records currently include OpenAI and Openrouter.
How much does GPT-4.1 Nano cost through an API?+
The lowest directly sourced prices currently attached to GPT-4.1 Nano are $0.050 per million input tokens through Openrouter and $0.20 per million output tokens through Openrouter. Prices are provider-specific and should be checked against each cited observation date.
What capabilities and tasks does GPT-4.1 Nano support?+
GPT-4.1 Nano's recorded capabilities are chat, generation, and tools. Its supported tasks are image and text.
Can GPT-4.1 Nano be self-hosted?+
GPT-4.1 Nano is not marked as an open-weight model. Self-hosting is marked as unsupported, with no license recorded.
Does GPT-4.1 Nano have related versions or aliases?+
No predecessor is recorded. No successor is recorded. Recorded aliases are gpt-4.1-nano and gpt-4.1-nano-2025-04-14.
Which models can GPT-4.1 Nano be compared with?+
The current compatible peer set includes GPT-4o, GPT-4o Mini, GPT-5.6 Luna, GPT-5.6 Sol, and Mistral-Small-4-119B-2603. Compatibility requires shared sourced modalities and tasks; it does not imply that one model is better. Browse model comparisons →
How current is the Model Markets record for GPT-4.1 Nano?+
GPT-4.1 Nano was last verified Aug 29, 2026 from OpenAI's primary source, “GPT-4.1 Nano Model | OpenAI API.” The evidence is classified as official fact.