GPT-5.5
Specs & Pricing
API pricing per 1M tokens and core technical specificationsCost Calculator
Simulate estimated API usage cost based on your specific traffic and context sizeSimulation Results
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Alternative Models
Models with comparable benchmark score and pricing tier| Model | Provider | Context Window | Max Output | Training Cutoff | Input / 1M | Cache Price / 1M | Output / 1M | Benchmark | Speed | Total |
|---|---|---|---|---|---|---|---|---|---|---|
OpenAI👑 | 1M | 128K | 2026-02 | $5.00 | $0.50 | $30.00 | 97 | Standard | $0.1498 | |
Anthropic👑 | 1M | 128K | 2026-05 | $5.00 | $0.50 | $25.00 | 96.5 | Slow | $0.1348 | |
Anthropic | 1M | 128K | 2026-01 | $5.00 | $0.50 | $25.00 | 95 | Slow | $0.1348 | |
Anthropic | 1M | 128K | 2026-01 | $5.00 | $0.50 | $25.00 | 93.5 | Slow | $0.175 | |
Anthropic | 1M | 128K | 2025-08 | $5.00 | $0.50 | $25.00 | 93 | Slow | $0.175 |
Provider
Benchmark
97Speed
Standard
Training Cutoff
2026-02
Context Window
1M
Max Output
128K
Input / 1M
$5.00
Cache Price / 1M
$0.50
Output / 1M
$30.00
Provider
Benchmark
96.5Speed
Slow
Training Cutoff
2026-05
Context Window
1M
Max Output
128K
Input / 1M
$5.00
Cache Price / 1M
$0.50
Output / 1M
$25.00
Provider
Benchmark
95Speed
Slow
Training Cutoff
2026-01
Context Window
1M
Max Output
128K
Input / 1M
$5.00
Cache Price / 1M
$0.50
Output / 1M
$25.00
Provider
Benchmark
93.5Speed
Slow
Training Cutoff
2026-01
Context Window
1M
Max Output
128K
Input / 1M
$5.00
Cache Price / 1M
$0.50
Output / 1M
$25.00
Provider
Benchmark
93Speed
Slow
Training Cutoff
2025-08
Context Window
1M
Max Output
128K
Input / 1M
$5.00
Cache Price / 1M
$0.50
Output / 1M
$25.00
All AI Models Pricing & Cost Simulator
Compare cutting-edge models from OpenAI, Anthropic, Google, and DeepSeek. Accurately simulate real-world API costs with prompt caching and custom context length.
GPT-5.5 Frequently Asked Questions (FAQ)
Key insights into GPT-5.5 API pricing, context capacity, caching savings, and performance benchmarks
Q. What is the API pricing for GPT-5.5? How much does it cost per 1M tokens?＋
GPT-5.5 (OpenAI) is priced at $5.0000 per 1 million input tokens and $30.0000 per 1 million output tokens. The output rate is approximately 6.0x higher than the input rate. You can simulate your exact monthly API expenses tailored to your request volume and token length using the calculator above.
Q. What are the context window and maximum output limits of GPT-5.5?＋
GPT-5.5 features a 1M context window and a maximum output limit of 128K tokens per request. This massive 1M+ context capacity allows you to process extensive document libraries or entire codebases in a single prompt.
Q. Does GPT-5.5 support Prompt Caching, and how much cost can be saved?＋
Yes, GPT-5.5 supports prompt caching. Cached reads cost $0.5000 per 1M tokens, delivering an estimated 90% discount compared to standard input rates. (Minimum cache threshold: 1K) Caching reusable system instructions and documentation substantially lowers recurring API expenses.
Q. What is the benchmark score (93.25) and performance profile of GPT-5.5?＋
GPT-5.5 achieves an overall benchmark score of 93.25/100 with a "Standard" speed rating. It serves as a premier flagship model suited for complex reasoning, autonomous agents, and advanced coding.
Q. Which alternative models are comparable to GPT-5.5?＋
Key alternatives in similar price-to-performance tiers include GPT-5.6 Sol, Claude Opus 5, Claude Opus 4.8. We recommend comparing them based on your latency targets, context window needs, and prompt caching benefits using the full comparison tool on this site.