LLM AtlasLLM AtlasSearch models

Provider analysis

OpenAI

Frontier API model provider spanning reasoning, realtime, image, audio, and open-weight releases.

Last verified: 2026-03-29Confidence: HighPrimary sources: 3

This provider page blends full-profile entries with broader verified listings. Use it to separate deeply evaluated flagship models from source-backed records that are tracked primarily for market visibility, access data, and freshness coverage.

Headquarters
San Francisco, CA
Founded
2015
Models tracked
31
Full-profile models
31
Catalog last verified
2026-03-29
Latest model verification
2026-03-29
Newest release tracked
2026-03-05
Confidence
High
Access mix
api, hosted, open-weight, self-hosted
API models
29

Tracked models available through provider-managed APIs.

Open-weight models
2

Models with downloadable weights or self-hosted distribution paths.

Primary source links
95

Total source references attached across this provider catalog.

Provider sources

Official links used to verify the provider profile and platform coverage.

Last verified: 2026-03-29

OpenAI

GPT-4o

GPT-4

A broadly capable multimodal model optimized for production chat, agentic workflows, and voice experiences.

Score 913 sources
textvisionaudiotool-useapihosted
Context
128,000
Input
$0.005/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-5.2

OpenAI

OpenAI's latest frontier model with 1M token context for advanced reasoning and tool use.

Score 913 sources
textreasoningtool-useapihosted
Context
1,000,000
Input
$0.005/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-5.2 Pro

OpenAI

OpenAI's premium GPT-5.2 Pro with maximum reasoning capability.

Score 903 sources
textreasoningtool-useapihosted
Context
1,000,000
Input
$0.01/1K tok
Output
$0.03/1K tok
Coverage
Full profile

OpenAI

GPT-5.4

OpenAI

OpenAI's GPT-5.4, the most capable and efficient frontier model for professional work. First general-purpose model with native computer-use capabilities. Combines industry-leading coding from GPT-5.3-Codex with improved agentic workflows.

Score 933 sources
textreasoningtool-usevisionapihosted
Context
1,000,000
Input
$0.005/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-5.4 Pro

OpenAI

OpenAI's GPT-5.4 Pro delivering maximum performance for complex tasks. Available for ChatGPT Pro and Enterprise plans.

Score 913 sources
textreasoningtool-usevisionapihosted
Context
1,000,000
Input
$0.01/1K tok
Output
$0.03/1K tok
Coverage
Full profile

OpenAI

GPT-5.3 Instant

OpenAI

OpenAI's GPT-5.3 Instant optimized for low-latency everyday usability. Available to all ChatGPT users.

Score 853 sources
textreasoningtool-useapihosted
Context
1,000,000
Input
$0.0005/1K tok
Output
$0.002/1K tok
Coverage
Full profile

OpenAI

GPT-5.3-Codex

OpenAI

OpenAI's GPT-5.3-Codex for expanding Codex across the full spectrum of professional work on a computer. Powers the Codex app on macOS and Windows.

Score 873 sources
textcodereasoningtool-useapihosted
Context
1,000,000
Input
$0.005/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-5

OpenAI

OpenAI's GPT-5 with 1M context for balanced reasoning and coding.

Score 893 sources
textreasoningtool-useapihosted
Context
1,000,000
Input
$0.005/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-5 mini

OpenAI

OpenAI's GPT-5 mini for cost-efficient applications.

Score 863 sources
textreasoningtool-useapihosted
Context
1,000,000
Input
$0.0015/1K tok
Output
$0.006/1K tok
Coverage
Full profile

OpenAI

GPT-5 nano

OpenAI

OpenAI's smallest GPT-5 variant for ultra-fast, cost-sensitive applications.

Score 793 sources
textreasoningtool-useapihosted
Context
1,000,000
Input
$0.0005/1K tok
Output
$0.002/1K tok
Coverage
Full profile

OpenAI

GPT-4.1

OpenAI

OpenAI's GPT-4.1 with 1M token context, improved coding and instruction following.

Score 853 sources
textreasoningtool-useapihosted
Context
1,048,576
Input
$0.002/1K tok
Output
$0.008/1K tok
Coverage
Full profile

OpenAI

GPT-4.1 mini

OpenAI

OpenAI's GPT-4.1 mini for fast, cost-efficient inference with 1M context.

Score 803 sources
textreasoningtool-useapihosted
Context
1,048,576
Input
$0.0004/1K tok
Output
$0.0016/1K tok
Coverage
Full profile

OpenAI

o3-deep-research

OpenAI

OpenAI's deep research model for extended multi-step research tasks with tool use.

Score 803 sources
textreasoningtool-useapihosted
Context
200,000
Input
$0.01/1K tok
Output
$0.04/1K tok
Coverage
Full profile

OpenAI

o4-mini-deep-research

OpenAI

OpenAI's cost-efficient deep research model for extended tasks.

Score 803 sources
textreasoningtool-useapihosted
Context
200,000
Input
$0.003/1K tok
Output
$0.01/1K tok
Coverage
Full profile

OpenAI

gpt-realtime

OpenAI audio

OpenAI's realtime and audio models for low-latency voice interfaces.

Score 723 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

gpt-audio

OpenAI audio

OpenAI's realtime and audio models for low-latency voice interfaces.

Score 723 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

gpt-realtime-mini

OpenAI audio

OpenAI's mini audio models for cost-efficient voice interfaces.

Score 663 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

gpt-audio-mini

OpenAI audio

OpenAI's mini audio models for cost-efficient voice interfaces.

Score 663 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-4o mini TTS

OpenAI audio

OpenAI's GPT-4o based TTS and transcription models.

Score 583 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-4o Transcribe

OpenAI audio

OpenAI's GPT-4o based TTS and transcription models.

Score 583 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT-4o mini Transcribe

OpenAI audio

OpenAI's GPT-4o based TTS and transcription models.

Score 583 sources
audiotextapihosted
Context
128,000
Input
$0.006/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

GPT Image 1

OpenAI image

OpenAI's natively multimodal image generation model.

Score 673 sources
visiontextapihosted
Context
32,768
Input
$0.004/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

chatgpt-image-latest

OpenAI image

OpenAI's lightweight image generation variants.

Score 653 sources
visiontextapihosted
Context
32,768
Input
$0.004/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

gpt-image-1-mini

OpenAI image

OpenAI's lightweight image generation variants.

Score 653 sources
visiontextapihosted
Context
32,768
Input
$0.004/1K tok
Output
$0.02/1K tok
Coverage
Full profile

OpenAI

gpt-oss-120b

gpt-oss

OpenAI's 120B open-weight model for frontier-style reasoning with self-hosted deployment.

Score 724 sources
textreasoningcodeopen-sourceopen-weightself-hosted
Context
131,072
Input
Not applicable
Output
Not applicable
Coverage
Full profile

OpenAI

gpt-oss-20b

gpt-oss

OpenAI's 20B open-weight model for efficient frontier reasoning on consumer hardware.

Score 654 sources
textreasoningcodeopen-sourceopen-weightself-hosted
Context
131,072
Input
Not applicable
Output
Not applicable
Coverage
Full profile

OpenAI

o3

OpenAI

OpenAI's o3 reasoning model for complex multi-step problem solving with extended thinking.

Score 813 sources
textreasoningtool-useapihosted
Context
200,000
Input
$0.01/1K tok
Output
$0.04/1K tok
Coverage
Full profile

OpenAI

o4-mini

OpenAI

OpenAI's o4-mini for cost-efficient reasoning with strong coding and math capabilities.

Score 813 sources
textreasoningtool-useapihosted
Context
200,000
Input
$0.0011/1K tok
Output
$0.0044/1K tok
Coverage
Full profile

OpenAI

o1

OpenAI

OpenAI's o1 reasoning model with advanced chain-of-thought for complex problem solving.

Score 753 sources
textreasoningtool-useapihosted
Context
200,000
Input
$0.02/1K tok
Output
$0.06/1K tok
Coverage
Full profile

OpenAI

o1-mini

OpenAI

OpenAI's o1-mini for fast, cost-efficient reasoning on coding and STEM tasks.

Score 743 sources
textreasoningtool-useapihosted
Context
128,000
Input
$0.003/1K tok
Output
$0.01/1K tok
Coverage
Full profile

OpenAI

GPT-4o-mini

OpenAI

OpenAI's GPT-4o-mini for fast, cost-efficient inference with strong general capability.

Score 783 sources
textreasoningtool-useapihosted
Context
128,000
Input
$0.0002/1K tok
Output
$0.0006/1K tok
Coverage
Full profile