OpenAIGPT-4o

External Link

GPT-4o is OpenAI's versatile multimodal GPT model for text and image inputs.

Context
128,000 tokens
Inputs
Text, Image
Outputs
Text
Released
Not reported

Providers & Pricing

Estimate workload cost →
ProviderInput / 1MOutput / 1MCache read / 1MCache write / 1MObservedEvidence
$2.50$10.00$1.25Aug 29, 2026Provider-reported
$2.50$10.00$1.25Sep 2, 2026Provider-reported
GPT-4oOpenAIAider Polyglotpolyglot-225-5dc9490bb35f23.11percent225diff; aider 0.70.1.devunknownRecomputedwinner eligibleThird-party benchmark
GPT-4oOpenAILMArena Text Arenatext-2026-09-01-0115087206961,282.33rating45,499gpt-4o-2024-08-06; 95% CI [1278.14385443, 1286.52509361]; votes 45499; rank 250unknownOriginal sourcewinner eligibleThird-party benchmark
GPT-4oOpenAILMArena Vision Arenavision-2026-08-27-0115087206961,064.54rating3,376gpt-4o-2024-08-06; 95% CI [1052.10281463, 1076.97369812]; votes 3376; rank 119unknownOriginal sourcewinner eligibleThird-party benchmark
GPT-4oOpenAIToneBench2026-08-14-10-task57.17points1,18450GPT-4oaverage per caseOriginal sourcewinner eligibleThird-party benchmark

At a Glance

Model Facts

Identity

Status
active
Developer ID
gpt-4o-2024-08-06
Released
Not reported
Version
GPT-4o
License
Unknown

Capacity

Context
128,000 tokens
Maximum output
16,384 tokens
Total parameters
Unknown
Active parameters
Unknown
Knowledge cutoff
Oct 1, 2023

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-4o, gpt-4o-2024-08-06

Explicit Unknowns

  • Release date
  • Architecture
  • Tokenizer

Primary Evidence

Sources and Observation Date

Comparable Peers

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Questions

GPT-4o FAQs

What is GPT-4o?+

GPT-4o is OpenAI's versatile multimodal GPT model for text and image inputs. It is developed by OpenAI and its current sourced lifecycle status is active.

What inputs and outputs does GPT-4o support?+

GPT-4o's current record lists Text and Image as input and Text as output.

How much context does GPT-4o support?+

The current record lists a 128,000-token context window and a maximum output of 16,384 tokens.

Is GPT-4o available through an API?+

GPT-4o is marked as API-available. The directly sourced provider records currently include OpenAI and Openrouter.

How much does GPT-4o cost through an API?+

The lowest directly sourced prices currently attached to GPT-4o are $2.50 per million input tokens through OpenAI and $10.00 per million output tokens through OpenAI. Prices are provider-specific and should be checked against each cited observation date.

What capabilities and tasks does GPT-4o support?+

GPT-4o's recorded capabilities are chat, generation, and tools. Its supported tasks are image and text.

Can GPT-4o be self-hosted?+

GPT-4o is not marked as an open-weight model. Self-hosting is marked as unsupported, with no license recorded.

Does GPT-4o have related versions or aliases?+

No predecessor is recorded. No successor is recorded. Recorded aliases are gpt-4o and gpt-4o-2024-08-06.

Which models can GPT-4o be compared with?+

The current compatible peer set includes GPT-4.1, GPT-4.1 Mini, GPT-4.1 Nano, GPT-5.6 Luna, and granite-vision-4.1-4b. 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-4o?+

GPT-4o was last verified Aug 29, 2026 from OpenAI's primary source, “GPT-4o Model | OpenAI API.” The evidence is classified as official fact.

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