GPT-4o

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

Tekst i chatDostupno

od OpenAIgpt-4o

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

Isprobaj Preuzmi API ključ Usporedi

Cijena · 1M ulaz/izlaz: 3,00 US$ / 12,00 US$
Kontekst: 128.000 tokena
Maks. izlaz: 16.384 tokena
Ulaz → izlaz: Tekst → Tekst
Razvojni inženjer: OpenAI
Ažurirano: 23. septembar 2026.

Playground

Isprobaj GPT-4o

Razgovor

3,00 US$/1M in

Pošalji poruku. Odgovor stigne u cijelosti kada je model gotov (bez streaminga).

Sistemski prompt

Maks. duljina odgovora (tokeni)

⌘/Ctrl + Enter

Ovaj pokus

najviše 0,0123 US$ · 1,23 kredita rezervirano

Naplata se vrši prema stvarno korištenim tokenima; nekorišteni dio rezervacije se vraća.

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Dostupno 24 sati nakon registracije, do 5 pokusa dnevno i najviše 2 kredita po pokusu. Ostale metode prijave počinju bez kredita. Dovoljno za 8 pokretanja ovog modela.

O GPT-4o

UkratkoStanje: 23. septembar 2026.

GPT-4o je model od OpenAI iz kategorije Tekst i chat. Na Railwailu, GPT-4o košta 3,00 US$ po 1M ulaznih tokena i 12,00 US$ po 1M izlaznih tokena. Kontekstni prozor sadrži 128.000 tokena, a jedan odgovor može biti dugačak do 16.384 tokena.

Pozadina

O OpenAI

Osnovano 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.

Posjetite OpenAI

Arhitektura

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.

Parametri: Undisclosed (estimated in the hundreds of billions, dense)
Kontekst: 128.000 tokena

Mogućnosti

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.

Obuka i licenca

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.

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

Testiranje sigurnosti: 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.

Poznata ograničenja

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

Znanstveni članci

Cijene

Cijene u USD-u. Korištenje se naplaćuje iz unaprijed plaćenih kredita.

Ulaz	3,00 US$ / 1M tokena
Izlaz	12,00 US$ / 1M tokena

Naplaćuje se prema tokenima koje svaki zahtjev zapravo koristi.
1 kredit = 0,01 US$

Kalkulator troškova

Kalkulator cijena

Ulazni tokeni

/ zahtjev

Izlazni tokeni

/ zahtjev

Zahtjevi

Ukupno

0,90 US$

90 kredita

Po zahtjevu

0,009 US$ · 0,9 kredita

Svaki zahtjev se zaokružuje na 0,01 kredita.

API

Pozovi GPT-4o sa svojim Railwail API ključem. Koristi ovaj ID modela u zahtjevu:

gpt-4oPogledaj API dokumentaciju Dobij API ključ

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);

Postavite ključ kao RAILWAIL_API_KEYKreiraj API ključ

Specifikacije

ID modela: gpt-4o
Razvojni inženjer: OpenAI
Kategorija: Tekst i chat
Ulaz: Tekst
Izlaz: Tekst
Kontekstni prozor: 128.000 tokena
Maks. izlaz: 16.384 tokena
Naplata: Po potrošnji (tokeni ili GPU vrijeme)
Veličina modela: Undisclosed (estimated in the hundreds of billions, dense)
Licenca: Proprietary, available via OpenAI API and Azure OpenAI Service. Commercial use allowed under OpenAI Terms of Use.
Katalog ažuriran: 23. septembar 2026.

Oznake

popular
fast
multimodal

Primjer promptova

Primjeri iz Railwail kataloga. Nisu generirani uživo na ovoj stranici.

Creative Writing
Write a haiku about the first snowfall of winter
Prikaži primjer odgovora
Silent flakes descend, blanketing the sleeping earth— winter whispers soft.
Complex Analysis
Explain the difference between supervised and unsupervised machine learning in simple terms
Prikaži primjer odgovora
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.

Primjena

Za što se koristi

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

Povezani vodiči

Best Large Language Models

Svi modeli: Tekst i chat

Često postavljana pitanja

Što je GPT-4o?

GPT-4o je model od OpenAI iz kategorije Tekst i chat. Na Railwailu ga možete pozvati s API ključem kroz Railwail API.

Koliko stoji GPT-4o na Railwailu?

Na Railwailu, GPT-4o košta 3,00 US$ po 1M ulaznih tokena i 12,00 US$ po 1M izlaznih tokena. Naplaćuje se ono što svaki zahtjev zapravo koristi. Korištenje se plaća iz unaprijed kupljenih kredita; 1 kredit jednaka je 0,01 US$.

Koliki je kontekstni prozor od GPT-4o?

Kontekstni prozor od GPT-4o sadrži 128.000 tokena. Jedan odgovor može biti dugačak do 16.384 tokena.

Koliko je brz GPT-4o?

Za GPT-4o na Railwailu još nema dovoljno izmjerenih pokretanja da bi se navedlo vrijeme izvršavanja. Ovisi o unošenju, postavkama i opterećenju kod pružatelja.

Je li GPT-4o bolji od Claude Fable 5.1?

To ovisi o zadatku. GPT-4o (OpenAI) i Claude Fable 5.1 (Anthropic) su oba modela iz kategorije Tekst i chat. Stranica za usporedbu prikazuje njihove cijene i specifikacije usporedno.

Usporedi GPT-4o i Claude Fable 5.1

Kako koristim GPT-4o kroz API?

Kreiraj Railwail API ključ i pošalji svoj zahtjev s ID-om modela gpt-4o. Primjeri koda za curl, Python i JavaScript nalaze se u odjeljku API na ovoj stranici.

Usporedivi modeli

Svi u ovoj kategoriji

Claude Fable 5.1Anthropic
Anthropic's model for the most demanding reasoning and long-horizon agentic work. 1M-token context window, up to 128K output tokens, adaptive thinking that is always on.
12,00 US$/1M in
300 % skupnije po jedinici
Usporedi GPT-4o i Claude Fable 5.1
Claude Opus 4.8Anthropic
The most capable model of Anthropic's Opus 4 series. State of the art on long-horizon agentic work, coding and knowledge tasks, with a 1M-token context window at standard pricing.
6,00 US$/1M in
100 % skupnije po jedinici
Usporedi GPT-4o i 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 US$/1M in
60 % skupnije po jedinici
Usporedi GPT-4o i Claude Opus 5.5

Koristi GPT-4o preko API-ja

Jedan API ključ za sve modele na Railwailu. Korištenje se naplaćuje iz unaprijed plaćenih kredita, 1 kredit = 0,01 US$.

Dobij API ključ Pogledaj sve modele