gpt-5.4-mini
OpenAIdevelopers.openai.com/api/docs/models/gpt-5.4-mi
Our strongest mini model yet for coding, computer use, and subagents
Updated 5 h ago · first seen 11 Sept 2026
model_01M293V779P8KH8DXX1AET69WT
Overview
Identity
Identity block not returned by the API for this entity.
Openness
Openness not classified yet — no sourced evidence to place this model in the ontology.
Key facts
- Release date
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
- Status
Source:Artificial AnalysisT2observed 10 h agomedium
- Knowledge cutoff
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
- Official page
Source:OpenAI Platform docsT1observed 12 h agohigh
- API model id
Source:OpenAI Platform docsT1observed 12 h agohigh
- Openrouter id
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
Architecture
- Tokenizer
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
Capabilities
Modalities
- Modalities
- imagetext
- Input
- imagetext
- Output
- text
Capabilities
Tool calling
Yes
OpenRouter public model & pricing listing · T2
Structured output
Yes
OpenRouter public model & pricing listing · T2
Reasoning
Yes
OpenRouter public model & pricing listing · T2
Vision
Yes
OpenRouter public model & pricing listing · T2
Audio
Unavailable
Fine-tuning available
Unavailable
- Context window
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
- Max output
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
- Knowledge cutoff
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
- Tokenizer
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
Benchmarks18
Compare with another model →Comparable same task and conditions · Partially comparable same task, conditions differ (effort, temperature, judge) · Not comparable different variant or metric
No benchmark results recorded
Providers & Pricing3
All offers in the price terminal →USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.
Price history
Output price · USD / 1M tokens 1 provider
- OpenAI API
- OpenAI API$4.5 → $2.2511 Sept 2026
- OpenAI APIfirst observed $4.511 Sept 2026
Input price · USD / 1M tokens 1 provider
- OpenAI API
- OpenAI API$0.75 → $0.37511 Sept 2026
- OpenAI APIfirst observed $0.7511 Sept 2026
Timeline22
Full timeline →gpt-5.4-mini scores 59.804% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 70.952% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 70.786% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 78.462% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 41.667% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 71.624% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 71.324% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 66.374% on LiveBench
livebench_leaderboardgpt-5.4-mini scores 52.27% on Terminal-Bench
artificial_analysisgpt-5.4-mini scores 59.18% on Terminal-Bench
artificial_analysisgpt-5.4-mini scores 2.02% on Terminal-Bench
artificial_analysisgpt-5.4-mini scores 28.13% on Humanity's Last Exam
artificial_analysisgpt-5.4-mini scores 24.58 on Artificial Analysis Intelligence Index
artificial_analysisOpenAI API lists gpt-5.4-mini at $0.375 in / $2.25 out per 1M tokens
openrouterOpenAI API lists gpt-5.4-mini at $0.75 in / $4.5 out per 1M tokens
openrouterOpenAI API lists gpt-5.4-mini at $0.75 in / $4.5 out per 1M tokens
openai
Change history21
Viewing AI Atlas as of 12 Sept 2026 — attributes exactly as the atlas knew them on that day; later corrections are not shown.
Back to today →Attributes as of 12 Sept 2026 25 claims in force
- Release date
- 17 Mar 2026
- Status
- deprecated
- Openness
- proprietary
- Context window
- 400K tokens
- Max output
- 128K tokens
- Knowledge cutoff
- Aug 2025
- Modalities
- document, image, text
- Input modalities
- document, image, text
- Output modalities
- text
- Tokenizer
- GPT
- API model id
- gpt-5.4-mini
- Official page
- Aa context window
- 400,000
- Aa openness
- proprietary
- File input
- Yes
- Aa median output tokens per second
- 173.7
- Openrouter id
- openai/gpt-5.4-mini
- Openrouter listed at
- 17 Mar 2026
- Reasoning
- Yes
- Structured output
- Yes
- Supported parameters
- include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools
- Tool calling
- Yes
- Vision
- Yes
- Weights available
- No
Release daterelease_date1
Statusstatus1
Opennessopenness1
Context windowcontext_length1
Max outputmax_output_tokens1
Knowledge cutoffknowledge_cutoff1
Modalitiesmodalities1
Input modalitiesmodalities_input1
Output modalitiesmodalities_output1
Tokenizertokenizer1
API model idapi_model_id1
Official pageofficial_url1
Descriptiondescription1
File inputfile_input1
Aa median output tokens per secondmetric.aa_median_output_tokens_per_second1
Openrouter idopenrouter_id1
Reasoningreasoning1
Structured outputstructured_output1
Supported parameterssupported_parameters1
Tool callingtool_calling1
Visionvision1
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
Provenance
Attributed facts
22
Source tiers
T1T24 / 18
Freshest observation
5 h ago
Conflicts
None
Source documents 5
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.
Data quality (67/100) measures how well AI Atlas knows this entity — completeness, primary-source ratio, freshness, conflicts — never how good the model is. Methodology →