GPT 5.5 API

Name: GPT 5.5 API
Brand: openai
Price: 5 USD
Availability: InStock

Utilizzo API

Usa i seguenti esempi di codice per integrare la nostra API:

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://llm.wavespeed.ai/v1"
)

response = client.chat.completions.create(
    model="openai/gpt-5.5",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)

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

Introduzione al modello

OpenAI GPT-5.5

GPT-5.5 is OpenAI's frontier model released on April 23, 2026, designed for complex professional workloads including agentic coding, computer use, and deep research. Building on GPT-5.4, it delivers stronger reasoning, higher reliability with 60% fewer hallucinations, and improved token efficiency — matching GPT-5.4 per-token latency while performing at a significantly higher level of intelligence. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs.

Why It Looks Great

Frontier-class reasoning with 88.7% SWE-bench Verified and 92.4% MMLU scores
1M token context window for large-scale reasoning, coding, and multimodal workflows
60% fewer hallucinations compared to GPT-5.4 with improved token efficiency
Three variants: standard, Thinking (extended reasoning), and Pro (highest accuracy)
Same per-token latency as GPT-5.4 despite the intelligence leap

Key Features

Context Window: 1050000 tokens
Max Input: 922000 tokens
Max Output: 128000 tokens
Vision: Supported
Function Calling: Supported
Thinking Mode: Supported (low / medium / high / xhigh effort levels)
Variants: GPT-5.5, GPT-5.5 Thinking, GPT-5.5 Pro

Benchmarks

Benchmark	GPT-5.4	GPT-5.5	Claude Opus 4.7	Gemini 3.1 Pro
SWE-bench Verified	~74%	88.7%	87.6%	80.6%
MMLU	91.1%	92.4%	—	—
Terminal-Bench 2.0	—	82.7%	—	—
Expert-SWE	—	73.1%	—	—
GDPval (44 occupations)	—	84.9%	—	—
OSWorld-Verified	—	78.7%	—	—
Hallucination rate	baseline	−60%	—	—

Specifications

Specification	Value
Provider	OpenAI
Model Type	Large Language Model (LLM)
Architecture	Transformer (Frontier)
Context Window	1050000 tokens
Max Input	922000 tokens
Max Output	128000 tokens
Input	Text, Image
Output	Text
Vision	Supported
Function Calling	Supported
Thinking Mode	Supported
Release Date	April 23, 2026

Note: GPT-5.5 is 2× GPT-5.4 at the token level, but uses significantly fewer tokens to complete the same tasks. Independent testing puts the net cost increase at roughly 20% once token efficiency is factored in.

How to Use

Write your prompt — describe the task, provide context, and specify desired output format.
Submit — the model processes your request and returns the response.

API Integration

Base URL: https://llm.wavespeed.ai/v1 API Endpoint: chat/completions Model ID: openai/gpt-5.5

API Usage

Python SDK

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://llm.wavespeed.ai/v1"
)

response = client.chat.completions.create(
    model="openai/gpt-5.5",
    messages=[{"role": "user", "content": "Hello!"}]
)

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

cURL

curl https://llm.wavespeed.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "openai/gpt-5.5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

What's New vs GPT-5.4

Aspect	GPT-5.4	GPT-5.5
SWE-bench Verified	~74%	88.7%
MMLU	91.1%	92.4%
Hallucination rate	baseline	−60%
Context window	1.05M	1.05M (922K input)
API input price	$2.50/M	$5.00/M
API output price	$15.00/M	$30.00/M
Computer use	Improving	Production-grade
Multi-step tool chains	Single-shot preferred	Full autonomous loops
Token efficiency	baseline	~40% fewer tokens on same tasks

GPT 5.5 API

openai/gpt-5.5

GPT-5.5 is OpenAI's frontier model released April 23, 2026, featuring a 1M+ token context window (922K input, 128K output) with text and image support. It scores 88.7% on SWE-bench Verified and 92.4% on MMLU with 60% fewer hallucinations than GPT-5.4, excelling at agentic coding, computer use, and deep research while matching GPT-5.4 per-token latency.

Domande frequenti su GPT 5.5

Quanto costa GPT 5.5 via API?+

Prezzi su WaveSpeedAI: $5.00 per milione di token in input e $30.00 per milione di token in output. Prompt caching e batch processing sono fatturati separatamente e riducono il costo effettivo su carichi lunghi e ripetitivi.

Qual è la context window di GPT 5.5?+

GPT 5.5 supporta fino a 1050K token di contesto e fino a 128K token di output per richiesta.

GPT 5.5 è compatibile con OpenAI?+

Sì. WaveSpeedAI espone GPT 5.5 tramite un endpoint compatibile con OpenAI all'indirizzo https://llm.wavespeed.ai/v1. Punta l'SDK ufficiale di OpenAI a questa base URL con la tua API key WaveSpeedAI — senza altre modifiche al codice.

Come si inizia con GPT 5.5?+

Accedi a WaveSpeedAI, crea una API key in Access Keys, poi invia una richiesta a https://llm.wavespeed.ai/v1/chat/completions con il model id mostrato sopra. I nuovi account ricevono crediti gratuiti per testare GPT 5.5.

Prezzi