GPT · Flagship · 1,050K context window

GPT 5.5 pricing for security review

$0.1050 per call at 6,000 input / 2,500 output tokens.

Per call

$0.1050

10K calls/mo

$1,050

Cache savings

90% off input

Batch savings

50% off all

Calculate your GPT 5.5 costs

Adjust token counts, volume, and discount toggles to model your security review spend. Prices verified daily against provider pricing pages.

Configure your usage

6,000
100100K
2,500
5050K
10,000
1001M

Estimated cost

Monthly cost
$1,050
10,000 calls/month
Cost per call$0.105
Daily cost$35
Input rate$5.00/MTok
Output rate$30.00/MTok
Analyze your real spend

Quick start

Call GPT 5.5 with the OpenAI Python SDK:

from openai import OpenAI

client = OpenAI()
response = client.chat.completions.create(
    model="gpt-5.5",
    max_tokens=2500,
    messages=[{"role": "user", "content": "Your prompt here"}]
)
# Cost: ~$0.1050 per call at standard rates
# Input:  $5.00/MTok
# Output: $30.00/MTok

How GPT 5.5 compares on cost

Per-call cost for all models scoring 50+ on security review benchmarks. Hover for details.

Cheapest viable option: Claude Sonnet 5 at $0.0370/call (65% less, 96/100 quality).

What drives security review cost

Security review is the code task where quality is worth paying for: a missed vulnerability costs more than the entire year's inference bill. Input is large (the code plus the threat context) and output is moderate. This is the clearest case on this list for choosing a top-ranked model over the cheapest viable one, and for not batching away the latency you need in CI.

For GPT 5.5 specifically, that means output tokens cost 6.0x more than input, at $30.00 vs $5.00 per MTok. At this use case’s 6,000/2,500 token split, output accounts for 71% of the $0.1050 per-call cost.

Complete GPT 5.5 pricing breakdown

Standard token rates

Direction$/MTokTokens per call
Input$5.006,000
Output$30.002,500

Prompt caching: 90% off input tokens

Caching drops input cost from $5.00 to $0.50/MTok. For repeated system prompts, that saves $0.0270 per call.

Batch API: 50% off all tokens

Submit requests asynchronously and receive 50% off all token costs. This works best for offline pipelines where latency requirements are flexible.

Monthly cost projections

Monthly volumeCost per callStandard monthlyCached monthlyYou save with caching
10,000 calls$0.1050$1,050$780$270
50,000 calls$0.1050$5,250$3,900$1,350
100,000 calls$0.1050$10,500$7,800$2,700
500,000 calls$0.1050$52,500$39,000$13,500
1,000,000 calls$0.1050$105,000$78,000$27,000

GPT 5.5 quality benchmarks for security review

Use GPT 5.5 for security review

Scores 90/100 (rank #3 of 20). Strong pick for production security review workloads.

Top-ranked: Claude Sonnet 5 (96/100) at $0.0370/call

Performance across all task types

GPT 5.5 scores by task type. Security Review highlighted.

Reasoning95Code Generation91Creative Writing91Code Review *90Q&A90Summarization89Extraction87Classification85
Task typeConfidence scoreRank out of 20
Reasoning95/100#2
Code Generation91/100#3
Creative Writing91/100#2
Code Review(current page)90/100#3
Q&A90/100#2
Summarization89/100#3
Extraction87/100#4
Classification85/100#3

Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 8 weeks old, so treat the scores as directional and validate against your own evals.

Alternative models for security review

8 models score 80+ on security review benchmarks, sorted by input rate. Cheapest: Claude Sonnet 5 (65% less, 96/100 quality).

ModelProviderInput $/MTokOutput $/MTokQualityPer callvs GPT
Claude Sonnet 5Claude$2.00$10.0096/100$0.037065% cheaper
GPT 5.6 TerraGPT$2.00$12.0084/100$0.042060% cheaper
Gemini 3.1 ProGemini$2.00$12.0084/100$0.042060% cheaper
GPT 5.4GPT$2.50$15.0082/100$0.052550% cheaper
Claude Sonnet 4.6Claude$3.00$15.0095/100$0.055547% cheaper
GPT 5.6 SolGPT$4.00$20.0092/100$0.074030% cheaper
Claude Opus 4.8Claude$5.00$25.0094/100$0.092512% cheaper
Claude Fable 5Claude$10.00$50.0095/100$0.185076% more

About GPT 5.5

Provider

GPT

Tier

Flagship

Context

1,050K tokens

Released

Mar 2026

Other models from GPT

ModelTierInput $/MTokOutput $/MTokContext
GPT 5.4Mid-tier$2.50$15.001,050K
GPT 5.6 SolFlagship$4.00$20.001,050K
GPT 5.6 TerraMid-tier$2.00$12.001,050K
GPT 5.6 LunaFast / Budget$0.20$1.201,050K

You can compare GPT 5.5 head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.

Frequently asked questions

How much does GPT 5.5 cost for security review per API call?

A typical security review call using GPT 5.5 costs about $0.1050 per call. This estimate uses 6,000 input tokens and 2,500 output tokens at standard rates. Standard rates are $5.00 per million input tokens and $30.00 per million output tokens.

Is GPT 5.5 the best model for security review?

GPT 5.5 scores 90 out of 100 on security review benchmarks overall. It ranks #3 across all 20 models in our cross-provider registry. The highest-ranked model for this task is Claude Sonnet 5 from Claude. That model scores 96/100 on this task type. Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 8 weeks old, so treat the scores as directional and validate against your own evals.

What is the cheapest model for security review with good quality?

The most affordable model for security review above 80/100 quality is Claude Sonnet 5. It comes from Claude at $2.00 per million input tokens. Output costs $10.00 per million tokens with a quality score of 96/100. Switching from GPT 5.5 to Claude Sonnet 5 saves about 65% per API call.

How can I reduce my GPT 5.5 costs for security review?

Three strategies lower GPT 5.5 costs for this task type effectively. Prompt caching gives a 90% discount on input tokens when reusing system prompts. The batch API gives 50% off all tokens for asynchronous processing workloads. Prompt optimization reduces token counts through more concise instructions and context windows. Combining caching with batching brings your cost from $0.1050 to about $0.005250 per call.

How does GPT 5.5 pricing compare to other GPT models?

GPT has 4 other models alongside GPT 5.5 today: GPT 5.4 at $2.50/$15.00 per million tokens (mid-tier), GPT 5.6 Sol at $4.00/$20.00 per million tokens (flagship), GPT 5.6 Terra at $2.00/$12.00 per million tokens (mid-tier), GPT 5.6 Luna at $0.20/$1.20 per million tokens (fast / budget). The right choice depends on whether your security review workload prioritizes quality, cost, or speed.

What context window does GPT 5.5 support?

GPT 5.5 supports a context window of 1,050K tokens per API call. This sets the maximum combined length of your input prompt and generated response. For security review, typical calls use 6,000 input and 2,500 output tokens. That is well within this limit, leaving room for longer prompts or multi-turn conversations.

Track what you spend on AI

This calculator estimates costs based on published rates only. Connect your API usage to see where your money goes and which models drive your spend.