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GPT-5.1 High vs GPT-6 Cyber

GPT-5.1 High and GPT-6 Cyber are closely matched at 34.5 and 40.8 on the LLM Stats Score. GPT-5.1 High is 11.6x cheaper per token.

OpenAI · OpenAI · Updated for 2026

Which is better?

GPT-5.1 High and GPT-6 Cyber are closely matched on the overall LLM Stats Score at 34.5 and 40.8.

On price, GPT-5.1 High is roughly 11.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-6 Cyber also accepts a larger context window (1,050,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose GPT-5.1 High

  • cost matters — it's about 11.6x cheaper per token

Choose GPT-6 Cyber

  • you process long inputs — it offers a 1,050,000 token context window
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

GPT-5.1 High
OpenAI
GPT-6 Cyber
OpenAI
Core performance indexes
LLM Stats Score
34.5
#123
40.8
#82
Cost, coverage & limits
Benchmark wins
—
—
Input price
$1.25 / M
$20.00 / M
Output price
$10.00 / M
$100.00 / M
Context window
400,000
1,050,000

Individual benchmarks

3 reported for GPT-5.1 High · 1 for GPT-6 Cyber

No common benchmarks found

GPT-5.1 High and GPT-6 Cyberdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

GPT-5.1 High costs less

For input processing, GPT-5.1 High ($1.25/1M tokens) is 16.0x cheaper than GPT-6 Cyber ($20.00/1M tokens).

For output processing, GPT-5.1 High ($10.00/1M tokens) is 10.0x cheaper than GPT-6 Cyber ($100.00/1M tokens).

In conclusion, GPT-6 Cyber is more expensive than GPT-5.1 High.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat Nov 14 2026 • llm-stats.com
OpenAI
GPT-5.1 High
Input tokens$1.25
Output tokens$10.00
Best providerOpenAI
OpenAI
GPT-6 Cyber
Input tokens$20.00
Output tokens$100.00
Best providerOpenAI
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

GPT-6 Cyber accepts 1,050,000 input tokens compared to GPT-5.1 High's 400,000 tokens. Both models can generate responses up to 128,000 tokens.

OpenAI
GPT-5.1 High
Input400,000 tokens
Output128,000 tokens
OpenAI
GPT-6 Cyber
Input1,050,000 tokens
Output128,000 tokens
Sat Nov 14 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-5.1 High and GPT-6 Cyber support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-5.1 High

Text
Images
Audio
Video

GPT-6 Cyber

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-5.1 High

Proprietary

Closed source

GPT-6 Cyber

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.1 High was released on 2025-11-12, while GPT-6 Cyber was released on 2026-11-05.

GPT-6 Cyber is 12 months newer than GPT-5.1 High.

GPT-5.1 High

Nov 12, 2025

1.0 years ago

GPT-6 Cyber

Nov 5, 2026

1 weeks ago

11mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GPT-5.1 High is available from OpenAI. GPT-6 Cyber is available from OpenAI.

GPT-5.1 High

openai logo
OpenAI
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M

GPT-6 Cyber

openai logo
OpenAI
Input Price:Input: $20.00/1MOutput Price:Output: $100.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-5.1 High and GPT-6 Cyber side-by-side, then vote on the output you prefer.

GPT-5.1 High
✓ Preferred
GPT-6 Cyber
Open in Playground

FAQ

Common questions about GPT-5.1 High vs GPT-6 Cyber.

Which is better, GPT-5.1 High or GPT-6 Cyber?

GPT-5.1 High and GPT-6 Cyber are closely matched on the LLM Stats Score at 34.5 and 40.8. GPT-5.1 High is made by OpenAI and GPT-6 Cyber is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-5.1 High compare to GPT-6 Cyber in benchmarks?

GPT-5.1 High scores AIME 2025: 99.6%, GPQA: 88.1%, LiveBench: 72.0%. GPT-6 Cyber scores ExploitGym: 48.5%.

Is GPT-5.1 High cheaper than GPT-6 Cyber?

GPT-5.1 High is 16.0x cheaper for input tokens. GPT-5.1 High costs $1.25/M input and $10.00/M output via openai. GPT-6 Cyber costs $20.00/M input and $100.00/M output via openai.

What are the context window sizes for GPT-5.1 High and GPT-6 Cyber?

GPT-5.1 High supports 400K tokens and GPT-6 Cyber supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-5.1 High and GPT-6 Cyber?

Key differences include LLM Stats Score (34.5 vs 40.8), context window (400K vs 1.1M), input pricing ($1.25 vs $20.00/M). See the full comparison above for benchmark-by-benchmark results.

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