openai/gpt-5.5-pro
Veröffentlichungsdatum: 2026-04-25
1,050,000 context · $30.00/M input tokens · $180.00/M output tokens
GPT-5.5 Pro is the highest-accuracy variant of OpenAI's GPT-5.5 frontier model, using parallel test-time compute for correctness-critical workloads. It shares the same 1M+ context window and multimodal capabilities as GPT-5.5 standard, with enhanced reliability for professional research, complex analysis, and production-grade agentic tasks.
Preise
Pay-per-Use
Keine Vorabkosten, zahlen Sie nur, was Sie nutzen
Modell ausprobieren
API-Nutzung
Verwenden Sie die folgenden Codebeispiele zur Integration mit unserer API:
import OpenAI from 'openai';
if (!process.env.WAVESPEED_API_KEY) throw new Error('Set WAVESPEED_API_KEY');
const client = new OpenAI({
apiKey: process.env.WAVESPEED_API_KEY,
baseURL: 'https://llm.wavespeed.ai/v1',
timeout: 120_000,
maxRetries: 2,
});
try {
const response = await client.chat.completions.create({
model: 'openai/gpt-5.5-pro',
messages: [{ role: 'user', content: 'Hello!' }],
});
console.log(response.choices[0]?.message?.content ?? '');
} catch (error) {
console.error('LLM request failed:', error);
process.exitCode = 1;
}import OpenAI from 'openai';
if (!process.env.WAVESPEED_API_KEY) throw new Error('Set WAVESPEED_API_KEY');
const client = new OpenAI({
apiKey: process.env.WAVESPEED_API_KEY,
baseURL: 'https://llm.wavespeed.ai/v1',
timeout: 120_000,
maxRetries: 2,
});
try {
const response = await client.chat.completions.create({
model: 'openai/gpt-5.5-pro',
messages: [{ role: 'user', content: 'Hello!' }],
});
console.log(response.choices[0]?.message?.content ?? '');
} catch (error) {
console.error('LLM request failed:', error);
process.exitCode = 1;
}Modelleinführung
OpenAI GPT-5.5 Pro
GPT-5.5 Pro is the highest-accuracy variant of OpenAI's GPT-5.5 frontier model, released April 23, 2026. It applies parallel test-time compute on top of the same GPT-5.5 base model to maximize correctness on hard tasks — targeting professional research, complex multi-step analysis, and production-grade agentic workflows where getting the answer right matters more than speed or cost. Available to Pro, Business, and Enterprise users in ChatGPT, and via the Responses API for developers.
Why It Looks Great
- Highest-accuracy mode in the GPT-5.5 family, built for correctness-critical workloads
- 1M token context window (922K input, 128K output) for large-scale document reasoning
- Parallel test-time compute delivers stronger results on hard coding, research, and analysis tasks
- Same 60% hallucination reduction and multimodal capabilities as GPT-5.5 standard
- Responses API support for structured agentic tool-use workflows
Key Features
- Context Window: 1050000 tokens
- Max Input: 922000 tokens
- Max Output: 128000 tokens
- Vision: Supported
- Function Calling: Supported
- Thinking Mode: Supported (extended parallel reasoning)
- API: Responses API only
Benchmarks
| Benchmark | GPT-5.4 Pro | GPT-5.5 | GPT-5.5 Pro | Claude Opus 4.7 |
|---|---|---|---|---|
| SWE-bench Verified | — | 88.7% | Higher | 87.6% |
| MMLU | — | 92.4% | Higher | — |
| Terminal-Bench 2.0 | — | 82.7% | Higher | — |
| GDPval (44 occupations) | — | 84.9% | Higher | — |
| Hallucination rate | — | −60% vs 5.4 | Best in class | — |
Note: OpenAI has not published separate benchmark numbers for GPT-5.5 Pro vs standard. The Pro variant uses additional compute at inference time to improve accuracy beyond the standard model's scores.
Specifications
| Specification | Value |
|---|---|
| Provider | OpenAI |
| Model Type | Large Language Model (LLM) |
| Architecture | Transformer (Frontier, Parallel Test-Time Compute) |
| 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 (parallel reasoning) |
| API | Responses API |
| Release Date | April 23, 2026 |
Pricing
| Token Type | Cost per Million Tokens |
|---|---|
| Input | $30.00 |
| Output | $180.00 |
GPT-5.5 Pro is 6× the standard GPT-5.5 price. Use it for tasks where correctness justifies the cost — complex research synthesis, high-stakes code generation, and production decision support. For routine workloads, GPT-5.5 standard at $5/$30 is the better fit.
How to Use
- Write your prompt — describe the task, provide context, and specify desired output format.
- Submit — the model applies extended parallel reasoning and returns the response.
API Integration
Base URL: https://llm.wavespeed.ai/v1 API Endpoint: responses Model ID: openai/gpt-5.5-pro
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-pro",
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-pro",
"messages": [{"role": "user", "content": "Hello!"}]
}'GPT-5.5 Pro vs GPT-5.5 Standard
| Aspect | GPT-5.5 | GPT-5.5 Pro |
|---|---|---|
| Target workload | General professional tasks | Correctness-critical tasks |
| Reasoning | Standard | Parallel test-time compute |
| API input price | $5.00/M | $30.00/M |
| API output price | $30.00/M | $180.00/M |
| API type | Chat Completions | Responses API |
| Context window | 1.05M | 1.05M |
| ChatGPT access | Plus, Pro, Business, Enterprise | Pro, Business, Enterprise only |
Info
Unterstützte Funktionen
API-Zugriffsanleitung
GPT 5.5 Pro API
openai/gpt-5.5-pro
GPT-5.5 Pro is the highest-accuracy variant of OpenAI's GPT-5.5 frontier model, using parallel test-time compute for correctness-critical workloads. It shares the same 1M+ context window and multimodal capabilities as GPT-5.5 standard, with enhanced reliability for professional research, complex analysis, and production-grade agentic tasks.
Eingabe
$30 /M
Ausgabe
$180 /M
Kontext
1050K
Max. Ausgabe
128K
Vision
Unterstützt
Tool-Nutzung
Unterstützt
GPT 5.5 Pro auf WaveSpeedAI testen
Zugriff auf GPT 5.5 Pro über unsere einheitliche API — OpenAI-kompatibel, keine Kaltstarts, transparente Preise.
Häufige Fragen zu GPT 5.5 Pro
Wie viel kostet die GPT 5.5 Pro-API?+
Preise auf WaveSpeedAI: $30.00 pro Million Input-Tokens und $180.00 pro Million Output-Tokens. Prompt-Caching und Batch-Verarbeitung werden separat berechnet und reduzieren die effektiven Kosten bei langen, sich wiederholenden Workloads.
Wie groß ist das Kontextfenster von GPT 5.5 Pro?+
GPT 5.5 Pro unterstützt bis zu 1050K Kontext-Tokens und bis zu 128K Output-Tokens pro Anfrage.
Ist GPT 5.5 Pro OpenAI-kompatibel?+
WaveSpeedAI stellt GPT 5.5 Pro unter https://llm.wavespeed.ai/v1 über die OpenAI-kompatible Chat-Completions-Schnittstelle bereit. Bei den meisten OpenAI-SDK-Clients reichen Base-URL und API-Schlüssel; optionale Felder hängen vom Modell ab.
Wie starte ich mit GPT 5.5 Pro?+
Melden Sie sich bei WaveSpeedAI an, erstellen Sie unter Access Keys einen API-Schlüssel und senden Sie eine Anfrage mit der oben gezeigten Modell-ID an https://llm.wavespeed.ai/v1/chat/completions. Verfügbarkeit, Fähigkeiten und Preise finden Sie im aktuellen Modellkatalog.