How does GPT-4.1 Nano rank among AI models?
GPT-4.1 Nano is a superseded version and is not on the current board as of 22 September 2026. Its archive position, where one exists, is shown on the page; the newer version carries the current rank.
OpenAI·openai/gpt-4.1-nano
GPT-4.1 Nano is ModelCap archive rank #263 (Measured), from the ModelCap Index as of 22 Sept 2026, 02:49 UTC.
GPT-4.1 Nano listed OpenRouter input price is $0.10 per 1M tokens and listed output price is $0.40 per 1M tokens, from OpenRouter listed prices as of 22 Sept 2026, 02:49 UTC.
GPT-4.1 Nano has a published context limit of 1M tokens in the ModelCap catalogue as of 22 Sept 2026, 02:49 UTC.
GPT-4.1 Nano has 3 published OpenRouter serving endpoints, from OpenRouter as of 22 Sept 2026, 02:49 UTC.
GPT-4.1 Nano weight access is api only, from ModelCap classification of published repository metadata as of 22 Sept 2026, 02:49 UTC.
Snapshot facts · download the public dataset · methodology
ModelCap Index · All-versions archive
29.1#263
Measured · 56% support · score interval 23.6–34.6
Evidence as of 21 Sept 2026, 17:21 UTC
Superseded by GPT-5.4 Nano. It no longer holds a current-board position; its all-versions archive rank is #263.
Input
$0.10
per 1M tokens
Output
$0.40
per 1M tokens
Context
1M
tokens
Providers
3
endpoints
Gateway spend
—
latest · Vercel share
Providers
Uptime measured over the last 30 minutesOther versions (2)
ModelCap Index · All-versions archive
Methodology29.1
Measured · 3 public benchmark observations across 3 boards
All-versions archive
#263
- Public rank basis
- Measured (measured)
- Index support
- 56.4% · strong
- Index interval
- 23.6–34.6
- Rank posterior
- Not available
- Top 5 / Top 10 probability
- Not available / Not available
- Posterior as of
- Snapshot timestamp unavailable
- Evidence as of
- 21 Sept 2026, 17:21 UTC
- Identity binding
- Exact catalogue product · openai/openai/gpt-4.1-nano · aggregates disclosed benchmark configurations · endpoint configuration not claimed
- Index observations used
- 3
- Qualified Index evidence point
- 29.1
Bayesian Evidence Score · measured evidence input only
BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.
- Observed capability
- 29.1
- Evidence status
- confirmed · 84% mass
- General preference
- 29.5
- Coding
- 30.6
- Agents & tools
- —
- Reasoning
- 14.2
- Evidence breadth
- 95%
- Evidence coverage
- 56%
Market and catalogue signals · secondary, never the language Index rank
- Usage (OpenRouter popularity)
- 25.5
- Liquidity (providers × uptime)
- 98.8
- Open reach (HF downloads)
- —
- Surface (context / tools / modalities)
- 75.0
- Freshness
- 13.5
- · OpenRouter popularity #74
- · 2 live providers
- · Catalogue: context 1047576, tools, modalities Image/Text/File
- · First seen 2025-04-14
These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.
BES evidence selected · measured input only
- Arena Overall29.5
- Arena Coding30.6
- ARC-AGI-2 Verified14.2
The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.
Deployment readiness
Metadata index47.8
partial · 56% metadata coverage
- Artifact reproducibility
- 0.0
- Access & legal clarity
- 30.3
- Deployability
- 90.0
- Evaluation provenance
- 73.7
Missing: artifactReproducibility.revision-sha, artifactReproducibility.architecture-and-model-type, artifactReproducibility.parameter-count, artifactReproducibility.serialized-weight-format, artifactReproducibility.base-lineage, accessLegalClarity.declared-license, accessLegalClarity.resolvable-license-terms, evaluationProvenance.evaluation-dataset-revisions.
A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.
Market activity
Venue coverage- Market Gravity
- 46.9
- OpenRouter weekly popularity
- #74 of 322
Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.
Arena preference
- Status
- Ranked
- Source
- LMArena
- Official rank
- #243 of 402
- Rating
- 1322.2
- 95% confidence interval
- 1314–1330
- Votes
- 6K
- Source published at
- 13 Sept 2026, 00:00 UTC
- Category
- overall
- Identity match confidence
- 99%
Market Gravity breakdown
- Usage55%
- 25.5
- Liquidity25%
- 98.8
- Open reach15%
- 50.0
- Freshness5%
- 13.5
OpenRouter weekly popularity across the full model catalogue.
Independent providers versus the model's open or closed cohort, weighted by uptime.
Hugging Face 30-day downloads for open models; neutral for closed models.
Time since first public availability, on a six-month half-life.
Specification
- Context window
- 1M tokens
- Max output
- 33K tokens
- Inputs
- Image, Text, File
- Outputs
- Text
- Tokenizer
- GPT
- Cached input tokens
- $0.025 / 1M
- First seen on OpenRouter
- 14 Apr 2025
- Knowledge cutoff
- 2024-06-30
Capabilities
- Not supported: Reasoning
- Supported: Tool use
- Supported: Structured output
- Supported: Response format
- Supported: Moderated
Benchmark leaderboards featuring GPT-4.1 Nano
All leaderboardsGPT-4.1 Nano: common questions
How much does GPT-4.1 Nano cost per 1M tokens?
GPT-4.1 Nano is listed at $0.10 per 1M input tokens and $0.40 per 1M output tokens as of 22 September 2026 across 2 providers. Prices come from the OpenRouter catalogue and re-observe on every refresh. For 1,000 requests using 2,000 input and 500 output tokens each, the listed rates imply $0.40 total (2M input + 0.5M output). This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the chosen endpoint's rate and limits before budgeting.
What is the context window of GPT-4.1 Nano?
GPT-4.1 Nano has a published context window of 1M tokens (1,047,576) and a maximum output of 33K tokens. Individual providers can serve less than the published maximum; the providers table lists each endpoint's own limit.
Is GPT-4.1 Nano open-weight?
API only. No downloadable model weights are linked in the current source data; access is through a hosted API or product.
Which API providers serve GPT-4.1 Nano?
2 providers serve GPT-4.1 Nano through OpenRouter as of 22 September 2026: Azure and OpenAI. Each provider's price, context limit, quantization and measured uptime are in the providers table above.
Which benchmarks has GPT-4.1 Nano been evaluated on?
GPT-4.1 Nano has published results on 5 public boards tracked by ModelCap as of 22 September 2026: Arena coding 1374 (#226 of 397), ARC-AGI-2 0.0% (#197 of 214), BFCL V4 33.1 (#42 of 83), AA τ²-Bench Telecom 17.3% (#368 of 436) and AA Humanity's Last Exam 3.8% (#557 of 615). Each board page ranks every tracked model on that benchmark; the ModelCap Index combines them with published uncertainty.
When was GPT-4.1 Nano released?
GPT-4.1 Nano first appeared in the catalogue on 14 Apr 2025, with a published knowledge cutoff of 2024-06-30. It has since been superseded by GPT-5.4 Nano. Rank and price movements since then are recorded on the site's changes feed.