GPT-4o

Name: GPT-4o
Brand: OpenAI
SKU: gpt-4o
Price: 3 USD
Availability: InStock

Text a chatDostupné

od OpenAIgpt-4o

OpenAI's most capable multimodal model. Excellent for complex reasoning, coding, and creative tasks.

Vyskúšať Získať API kľúč Porovnať

Cena · 1M vstup/výstup: 3,00 USD / 12,00 USD
Kontext: 128 000 tokenov
Max. výstup: 16 384 tokenov
Vstup → výstup: Text → Text
Vývojár: OpenAI
Aktualizované: 23. septembra 2026

Playground

Vyskúšajte GPT-4o

Chat

3,00 USD/1M vstup

Pošli správu. Odpoveď príde úplne, keď je model hotový (bez streamovania).

Systémový prompt

Maximálna dĺžka odpovede (tokeny)

⌘/Ctrl + Enter

Tento beh

maximálne 0,0123 USD · 1,23 credits rezervovaných

Fakturuje sa počet skutočne použitých tokenov; nepoužitá časť rezervácie sa vráti.

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Použiteľné 24 hodín po registrácii, až 5 behov za deň a maximálne 2 credits za beh. Ostatné spôsoby prihlásenia sa spúšťajú bez credits. Stačí na 8 spustení tohto modelu.

O GPT-4o

StručneK 23. septembra 2026

GPT-4o je model od OpenAI v kategórii Text a chat. Na Railwail stojí GPT-4o 3,00 USD za 1M vstupných tokenov a 12,00 USD za 1M výstupných tokenov. Kontextné okno obsahuje 128 000 tokenov a jedna odpoveď môže byť dlhá až 16 384 tokenov.

Pozadie

O OpenAI

Založené 2015 · San Francisco, USA

OpenAI was founded in December 2015 by Sam Altman, Elon Musk, Greg Brockman, Ilya Sutskever, Wojciech Zaremba and John Schulman as a non-profit AI research lab with a $1B pledged commitment. The lab restructured into a capped-profit company (OpenAI LP) in 2019 to attract capital from Microsoft, which has invested over $13 billion. OpenAI's most-cited papers include 'Improving Language Understanding by Generative Pre-Training' (GPT-1, 2018), 'Language Models are Few-Shot Learners' (GPT-3, 2020), the GPT-4 Technical Report (2023) and the InstructGPT/RLHF paper (2022). The ChatGPT consumer product, launched in November 2022, reached 100M weekly active users faster than any consumer software in history. Product milestones include GPT-3.5, GPT-4 (March 2023), GPT-4 Turbo, GPT-4o (May 2024), the o1/o3 reasoning family (late 2024/2025), GPT-4.1 (April 2025) and the Sora video model. Sam Altman is CEO. The company's last reported valuation in 2025 exceeded $300 billion.

Navštíviť OpenAI

Architektúra

Decoder-only Transformer (natively multimodal)

GPT-4o (the 'o' stands for 'omni') was released in May 2024 as OpenAI's first natively multimodal flagship: a single neural network trained end-to-end on text, audio and images, replacing the earlier cascade of separate ASR, LLM and TTS pipelines used by ChatGPT Voice. Inputs and outputs can be any combination of text, audio and image tokens, and the model emits audio with a median response latency of 320ms for spoken conversation. Architecturally it is a decoder-only Transformer with a unified tokenizer that mixes BPE text tokens, image patches and discretised audio frames. Pretraining used a multi-trillion-token web-scale corpus filtered for quality, plus large image-text pair datasets and licensed audio. Post-training applied RLHF with human raters, model-graded rewards and red-teaming under OpenAI's Preparedness Framework. GPT-4o introduced a new tokenizer with substantially better compression for non-English scripts, reducing token counts by 1.1x-4.4x across languages such as Hindi, Arabic, Korean and Tamil. The context window is 128K tokens with 16K maximum output. Function calling, JSON mode, vision input and Structured Outputs (with strict schema adherence) are first-class. The model card discloses Preparedness Framework evaluations against CBRN, cyber and persuasion risks.

Parametre: Undisclosed (estimated in the hundreds of billions, dense)
Kontext: 128 000 tokenov

Schopnosti

Natively multimodal: text, image and audio in and out
Real-time voice conversation with sub-second latency
128K context window with 16K max output
Improved non-English tokenizer (up to 4.4x fewer tokens for some languages)
Vision: charts, diagrams, screenshots, OCR
Function calling and parallel tool calls
Structured Outputs with strict JSON schema
Strong coding performance with file editing via tools
Singing, emotional speech and laughter in audio mode
Multilingual fluency across 50+ languages
Best for: real-time voice agents, multimodal assistants, general-purpose chat, vision tasks.

Tréning a licencia

Trained on a multi-trillion-token mixture of web text, code, books, licensed third-party data and large image-text and audio datasets. Knowledge cutoff is October 2023. OpenAI does not disclose exact dataset composition.

Licencia: Proprietary, available via OpenAI API and Azure OpenAI Service. Commercial use allowed under OpenAI Terms of Use.

Bezpečnostné testy: Evaluated under OpenAI's Preparedness Framework across CBRN, cyber, persuasion and model autonomy risks. External red-teamers included over 100 experts in chemistry, biology, security and misinformation.

Známe obmedzenia

Can hallucinate citations and factual details
Voice mode sometimes mimics user voice unexpectedly
Knowledge cutoff October 2023 without tools
Performance on hardest reasoning trails o-series models
Audio output is not available in all API regions

Výskumné články

Ceny

Ceny v USD. Použitie sa účtuje z predplateného kreditu.

Vstup	3,00 USD / 1M tokenov
Výstup	12,00 USD / 1M tokenov

Fakturuje sa počet tokenov, ktoré jednotlivé požiadavky skutočne spotrebujú.
1 kredit = 0,01 USD

Kalkulačka nákladov

Kalkulačka cien

Vstupné tokeny

/ požiadavka

Výstupné tokeny

/ požiadavka

Požiadavky

Celkom

0,90 USD

90 kreditov

Na požiadavku

0,009 USD · 0,9 kreditov

Každá požiadavka sa zaokrúhli nahor na 0,01 kreditu.

API

Zavolajte GPT-4o s vaším API kľúčom Railwail. V požiadavke použite toto ID modelu:

gpt-4oDokumentácia API Získať API kľúč

curl https://railwail.com/api/v1/chat/completions \
  -H "Authorization: Bearer $RAILWAIL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {
        "role": "user",
        "content": "Explain what a vector database is in two sentences."
      }
    ],
    "max_tokens": 1024
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["RAILWAIL_API_KEY"],
    base_url="https://railwail.com/api/v1",
)

completion = client.chat.completions.create(
    model="gpt-4o",
    messages=[
        {
            "role": "user",
            "content": "Explain what a vector database is in two sentences.",
        },
    ],
    max_tokens=1024,
)

print(completion.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.RAILWAIL_API_KEY,
  baseURL: "https://railwail.com/api/v1",
});

const completion = await client.chat.completions.create({
  model: "gpt-4o",
  messages: [
    {
      role: "user",
      content: "Explain what a vector database is in two sentences."
    }
  ],
  max_tokens: 1024
});

console.log(completion.choices[0].message.content);

// npm install railwail
import railwail from "railwail";

const rw = railwail(process.env.RAILWAIL_API_KEY);

const res = await rw.chat("gpt-4o", [
  { role: "user", content: "Explain what a vector database is in two sentences." },
], { max_tokens: 1024 });

console.log(res.choices[0].message.content);

Nastavte svoj kľúč ako RAILWAIL_API_KEYVytvoriť API kľúč

Špecifikácie

ID modelu: gpt-4o
Vývojár: OpenAI
Kategória: Text a chat
Vstup: Text
Výstup: Text
Kontextové okno: 128 000 tokenov
Max. výstup: 16 384 tokenov
Fakturácia: Podľa spotreby (tokeny alebo čas GPU)
Veľkosť modelu: Undisclosed (estimated in the hundreds of billions, dense)
Licencia: Proprietary, available via OpenAI API and Azure OpenAI Service. Commercial use allowed under OpenAI Terms of Use.
Katalógová položka aktualizovaná: 23. septembra 2026

Značky

popular
fast
multimodal

Príklady promptov

Príklady z katalógu Railwail. Neboli vygenerované živě na tejto stránke.

Creative Writing
Write a haiku about the first snowfall of winter
Zobraziť príklad odpovede
Silent flakes descend, blanketing the sleeping earth— winter whispers soft.
Complex Analysis
Explain the difference between supervised and unsupervised machine learning in simple terms
Zobraziť príklad odpovede
Supervised learning is like studying with an answer key—you feed the model labeled examples so it learns to predict the correct output. Unsupervised learning is more like exploring a dataset without labels, where the model discovers hidden patterns, groupings, or structures on its own. Think of it as the difference between a teacher grading your homework versus sorting a pile of unlabeled photos into albums by similarity.

Prípady použitia

Na čo sa používa

Real-time voice assistants
Multimodal customer support
Vision-based document analysis
Coding copilots with tool use
Live translation
Accessibility tools

Súvisiace príručky

Best Large Language Models

Všetky modely v Text a chat

Často kladené otázky

Čo je GPT-4o?

GPT-4o je model od OpenAI v kategórii Text a chat. Na Railwail ho môžete volať pomocou API kľúča cez Railwail API.

Koľko stojí GPT-4o na Railwail?

Na Railwail stojí GPT-4o 3,00 USD za 1M vstupných tokenov a 12,00 USD za 1M výstupných tokenov. Platíte za to, čo každý požiadavok skutočne spotrebuje. Použitie sa platí z predplateného kreditu; 1 kredit sa rovná 0,01 USD.

Aké je kontextné okno GPT-4o?

Kontextné okno GPT-4o obsahuje 128 000 tokenov. Jedna odpoveď môže byť dlhá až 16 384 tokenov.

Ako rýchly je GPT-4o?

Pre GPT-4o je na Railwail zatiaľ príliš málo meraných spustení na určenie doby spustenia. Závisí to od vstupu, nastavení a zaťaženia u poskytovateľa.

Je GPT-4o lepší ako Claude Fable 5.1?

Závisí to od úlohy. GPT-4o (OpenAI) a Claude Fable 5.1 (Anthropic) sú oba modely v kategórii Text a chat. Stránka porovnania zobrazuje ich ceny a špecifikácie vedľa seba.

Porovnať GPT-4o a Claude Fable 5.1

Ako používam GPT-4o cez API?

Vytvorte Railwail API kľúč a pošlite svoju požiadavku s ID modelu gpt-4o. Príklady kódu pre curl, Python a JavaScript sú v časti API na tejto stránke.

Porovnateľné modely

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300 % drahšie na jednotku
Porovnať GPT-4o a Claude Fable 5.1
Claude Opus 4.8Anthropic
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6,00 USD/1M vstup
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Porovnať GPT-4o a Claude Opus 4.8
Claude Opus 5.5Anthropic
Anthropic's current Opus model for long-running agentic coding and knowledge work. 1M-token context window, up to 128K output tokens, adaptive thinking that is always on.
4,80 USD/1M vstup
60 % drahšie na jednotku
Porovnať GPT-4o a Claude Opus 5.5

Použiť GPT-4o cez API

Jeden API kľúč pre všetky modely na Railwail. Použitie sa účtuje z predplateného kreditu, 1 kredit = 0,01 USD.

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