OpenAI
GPT-5.5 token cost
OpenAI flagship general model for high-stakes chat, analysis, and agent workflows.
Published list rates
Input
$5.00
per 1M tokens
Output
$30.00
per 1M tokens
Cached input
$0.5
per 1M tokens
Context window
272,000
tokens
Pricing source: OpenAI API pricing
Estimate cost
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Project monthly volume
Daily requests × tokens per request × 30 days.
Estimated cost
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Cost as volume grows
Three views of GPT-5.5: sending only, receiving only, and a 70/30 mix. Same list rates, bigger rows.
| Tokens | Input only | Output only | Mix (70% in / 30% out) |
|---|---|---|---|
| 1 | $0.000005 | $0.00003 | $0.000013 |
| 10 | $0.00005 | $0.0003 | $0.000125 |
| 100 | $0.0005 | $0.003 | $0.00125 |
| 200 | $0.001 | $0.006 | $0.0025 |
| 300 | $0.0015 | $0.009 | $0.00375 |
| 400 | $0.002 | $0.012 | $0.005 |
| 500 | $0.0025 | $0.015 | $0.00625 |
| 1,000 | $0.005 | $0.03 | $0.0125 |
| 2,000 | $0.01 | $0.06 | $0.025 |
| 5,000 | $0.025 | $0.15 | $0.0625 |
| 10,000 | $0.05 | $0.3 | $0.125 |
| 25,000 | $0.125 | $0.75 | $0.3125 |
| 50,000 | $0.25 | $1.50 | $0.625 |
| 100,000 | $0.5 | $3.00 | $1.25 |
| 250,000 | $1.25 | $7.50 | $3.125 |
| 500,000 | $2.50 | $15.00 | $6.25 |
| 1,000,000 | $5.00 | $30.00 | $12.50 |
| 5,000,000 | $25.00 | $150.00 | $62.50 |
| 10,000,000 | $50.00 | $300.00 | $125.00 |
| 50,000,000 | $250.00 | $1,500.00 | $625.00 |
| 100,000,000 | $500.00 | $3,000.00 | $1,250.00 |
| 500,000,000 | $2,500.00 | $15,000.00 | $6,250.00 |
| 1,000,000,000 | $5,000.00 | $30,000.00 | $12,500.00 |
| 10,000,000,000 | $50,000.00 | $300,000.00 | $125,000.00 |
| 100,000,000,000 | $500,000.00 | $3,000,000.00 | $1,250,000.00 |
Tokens for a fixed budget
If you cap spend, this is roughly how many GPT-5.5 tokens that money buys.
| Budget | Input tokens | Output tokens | Mixed tokens (70/30) |
|---|---|---|---|
| $0.01 | 2,000 | 333 | 800 |
| $0.1 | 20,000 | 3,333 | 8,000 |
| $0.5 | 100,000 | 16,667 | 40,000 |
| $1.00 | 200,000 | 33,333 | 80,000 |
| $5.00 | 1M | 166,667 | 400,000 |
| $10.00 | 2M | 333,333 | 800,000 |
| $20.00 | 4M | 666,667 | 1.6M |
| $25.00 | 5M | 833,333 | 2M |
| $30.00 | 6M | 1M | 2.4M |
| $50.00 | 10M | 1.67M | 4M |
| $100.00 | 20M | 3.33M | 8M |
| $250.00 | 50M | 8.33M | 20M |
| $500.00 | 100M | 16.7M | 40M |
| $1,000.00 | 200M | 33.3M | 80M |
| $5,000.00 | 1B | 166.7M | 400M |
| $10,000.00 | 2B | 333.3M | 800M |
At these rates
- A workload with 70% input and 30% output costs $12.50 per 1 million total tokens and $1,250.00 per 100 million.
- At the same token count, output costs 6 times the input rate. Response length therefore deserves its own budget limit.
- Filling the 272,000-token context window with input alone would cost about $1.36, before any output.
- Cached input is $0.5 per million, 90% below standard input when the workload meets the provider’s cache rules.
Short-context standard rates shown. Long-context (>272K) and priority/batch tiers differ on the official page.
These figures use public list prices. Cache eligibility, batch or priority modes, long-context surcharges, discounts, and regional billing can change the invoice.