GPT-4o (2024-11-20)

Tool callingStructured outputImage input

Launch post Website Docs

GPT model for general reasoning, writing, coding, and tool-assisted tasks

Context: 128K
Released: 1y ago
Input / 1M tokens: $2.50
Output / 1M tokens: $10.00
Cached input / 1M tokens: $1.25

Sources:models.devOpenRouter

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

Other published benchmarks

Evaluation	Reported score and source
ARC-AGI-2	0.0% Third-party evaluator · gpt-4o-2024-11-20 External evaluation via Epoch AI Original-source terms apply
FrontierMath-2025-02-28-Private	0.3% Epoch AI · gpt-4o-2024-11-20 Epoch AI evaluation
GPQA diamond	47.9% Epoch AI · gpt-4o-2024-11-20 Epoch AI evaluation
OTIS Mock AIME 2024-2025	6.3% Epoch AI · gpt-4o-2024-11-20 Epoch AI evaluation
SWE-Bench verified	31.0% Epoch AI · gpt-4o-2024-11-20 Epoch AI evaluation

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

Specifications

Developer: OpenAI
Model family: GPT
Type: Language model
Predecessor: —
Successor: —
Released: November 20, 2024
Model ID: openai/gpt-4o-2024-11-20
Openness: Closed
License: —
Input modalities: text, image, file
Output modalities: text
Modality: text+image+file->text
Tokenizer: GPT
Max output tokens: 16K
Knowledge cutoff: 2023-09
Hugging Face: —
Source freshness: Metadata synced Oct 8, 2026, 10:17 PM UTC

Additional source evidence

Source model: openai/gpt-4o-2024-11-20
Source family: gpt
Last updated: 2024-11-20
Knowledge cutoff: 2023-09
Model context: 128K
Model output limit: 16K
Open weights: No
File attachments: Yes
Reasoning: No
Tool calling: Yes
Structured output: Yes
Temperature control: Yes

Published benchmarks

Benchmark	Score	Evaluation details	Evidence
Aider Polyglot	18.2 · percent correct	2024-12-30	Source
Artificial Analysis Coding Index	16.7 · index	2026-03-11	Source
SciCode	33.3 · percent correct	2026-03-11	Source
Terminal-Bench Hard	8.3 · success rate	2026-03-11	Source

Complete source record (JSON)

{
  "id": "openai/gpt-4o-2024-11-20",
  "name": "GPT-4o (2024-11-20)",
  "description": "GPT model for general reasoning, writing, coding, and tool-assisted tasks",
  "family": "gpt",
  "last_updated": "2024-11-20",
  "knowledge": "2023-09",
  "attachment": true,
  "reasoning": false,
  "tool_call": true,
  "structured_output": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 128000,
    "output": 16384
  },
  "benchmarks": [
    {
      "name": "Aider Polyglot",
      "score": 18.2,
      "source": "https://aider.chat/docs/leaderboards/",
      "metric": "percent correct",
      "date": "2024-12-30"
    },
    {
      "name": "Artificial Analysis Coding Index",
      "score": 16.7,
      "source": "https://openrouter.ai/openai/gpt-4o-2024-11-20/benchmarks",
      "metric": "index",
      "date": "2026-03-11"
    },
    {
      "name": "SciCode",
      "score": 33.3,
      "source": "https://openrouter.ai/openai/gpt-4o-2024-11-20/benchmarks",
      "metric": "percent correct",
      "date": "2026-03-11"
    },
    {
      "name": "Terminal-Bench Hard",
      "score": 8.3,
      "source": "https://openrouter.ai/openai/gpt-4o-2024-11-20/benchmarks",
      "metric": "success rate",
      "date": "2026-03-11"
    }
  ],
  "release_date": "2024-11-20",
  "open_weights": false
}

Infrastructure

Provider availability

All providers

Provider	Endpoint	Context	Input /M tokens	Output /M tokens	Cached input /M tokens	Cache write /M tokens	Uptime 1d	Data handling
OpenAI	openai	128K	$2.50	$10.00	$1.25	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15

Provider data:OpenRouter

Text provenance

EU · product-scoped

OpenAI textGrain watermarking

In the EU, ChatGPT-generated text uses textGrain. OpenAI says API customers can opt in globally for select models, so watermarking depends on the product surface and configuration.

Official explanation