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openai
openai/gpt-5.5

openai/gpt-5.5

1,050,000 context · $5.00/M input tokens · $30.00/M output tokens

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.

Preços

Pagamento por uso

Sem custo inicial, pague apenas pelo que usar

Entrada
272K $5.00 / M Tokens
> 272K $10.00 / M Tokens
Saída
272K $30.00 / M Tokens
> 272K $45.00 / M Tokens

Uso da API

Use os exemplos de código abaixo para integrar com nossa 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)

Introdução do modelo

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

BenchmarkGPT-5.4GPT-5.5Claude Opus 4.7Gemini 3.1 Pro
SWE-bench Verified~74%88.7%87.6%80.6%
MMLU91.1%92.4%
Terminal-Bench 2.082.7%
Expert-SWE73.1%
GDPval (44 occupations)84.9%
OSWorld-Verified78.7%
Hallucination ratebaseline−60%

Specifications

SpecificationValue
ProviderOpenAI
Model TypeLarge Language Model (LLM)
ArchitectureTransformer (Frontier)
Context Window1050000 tokens
Max Input922000 tokens
Max Output128000 tokens
InputText, Image
OutputText
VisionSupported
Function CallingSupported
Thinking ModeSupported
Release DateApril 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

  1. Write your prompt — describe the task, provide context, and specify desired output format.
  2. 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

AspectGPT-5.4GPT-5.5
SWE-bench Verified~74%88.7%
MMLU91.1%92.4%
Hallucination ratebaseline−60%
Context window1.05M1.05M (922K input)
API input price$2.50/M$5.00/M
API output price$15.00/M$30.00/M
Computer useImprovingProduction-grade
Multi-step tool chainsSingle-shot preferredFull autonomous loops
Token efficiencybaseline~40% fewer tokens on same tasks

Info

Provedoropenai
Tipollm

Funcionalidades suportadas

Entrada
TextoImagem
Saída
Texto
Contexto1,050,000
Saída máx.128,000
Vision✓ Suportado
Function Calling✓ Suportado

Guia de acesso à API

Base URLhttps://llm.wavespeed.ai/v1
API Endpointchat/completions
ID do modeloopenai/gpt-5.5

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.

Entrada

$5 /M

Saída

$30 /M

Contexto

1050K

Saída máx.

128K

Vision

Suportado

Uso de ferramentas

Suportado

Experimente GPT 5.5 no WaveSpeedAI

Acesse GPT 5.5 através da nossa API unificada — compatível com OpenAI, sem inicializações a frio, preços transparentes.

Abrir Playground

Perguntas frequentes sobre GPT 5.5

Quanto custa GPT 5.5 via API?+

Preços no WaveSpeedAI: $5.00 por milhão de tokens de entrada e $30.00 por milhão de tokens de saída. Prompt caching e batch processing são cobrados separadamente e reduzem o custo efetivo em cargas longas e repetitivas.

Qual é a janela de contexto do GPT 5.5?+

GPT 5.5 suporta até 1050K tokens de contexto e até 128K tokens de saída por requisição.

GPT 5.5 é compatível com OpenAI?+

Sim. O WaveSpeedAI expõe o GPT 5.5 através de um endpoint compatível com OpenAI em https://llm.wavespeed.ai/v1. Aponte o SDK oficial da OpenAI para esta base URL com sua chave API do WaveSpeedAI — sem outras alterações no código.

Como começo a usar o GPT 5.5?+

Entre no WaveSpeedAI, crie uma chave API em Access Keys, então envie uma requisição para https://llm.wavespeed.ai/v1/chat/completions com o model id mostrado acima. Contas novas recebem créditos grátis para avaliar o GPT 5.5.

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