OpenAI: GPT-5.1

Public pricingIntelligence 75/100Large memoryविज़नगहरी सोचटूल उपयोग

OpenAI: GPT-5.1 एक मल्टीमॉडल मॉडल है, जिसे multimodal तर्क और विश्लेषण के लिए बनाया गया है। यह multimodal input handling، गहरी तर्कशक्ति और योजना, 400K tokens का context और संतुलित लागत profile जोड़कर multimodal तर्क और विश्लेषण में भरोसेमंद काम करता है। यह तब व्यावहारिक विकल्प है जब गुणवत्ता, गति और लागत महत्वपूर्ण हो, खासकर उन टीमों के लिए जिन्हें स्थिर output,

Input

$1.25/1M

Output

$10.00/1M

Cached

$0.13/1M

Batch

$0.63/1M

Calculate your GPT-5.1 bill.

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What would GPT-5.1 cost you?

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Technical specifications

GPT-5.1 at a glance.

Memory

400,000

tokens

Max reply

128,000

tokens

Memory tier

Large

an entire book or large codebase

Tokenizer

tiktoken-o200k

Released

Nov 2025

Training cutoff

Jul 2025

Availability

Public pricing

Status

active

Benchmarks

Quality benchmarks

Independent evaluations from public leaderboards. Higher is better.

  • frontiermath_tier_4

    4.17

  • gpqa_diamond

    64.3

  • humanitys_last_exam

    23.68

  • mmlu

    80.1

  • swe_bench_verified

    67.98

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick GPT-5.1

  • Multi-step reasoning, research agents, or hard math.
  • Screenshot analysis, image understanding, or document OCR.
  • Agentic workflows that call tools or APIs.
  • Long documents, full codebases, or extensive chat histories.

When to look elsewhere

  • Very latency-sensitive, real-time apps where every millisecond counts.

Alternatives

Similar models to compare.

FAQ

GPT-5.1 — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, GPT-5.1 costs roughly $494 per month. Input is $1.25 /1M tokens and output is $10.00 /1M tokens.
GPT-5.1 has a 400,000-token context window (large memory — an entire book or large codebase). That means you can fit about 75,000 words of input and history in a single call.
Beyond text generation, GPT-5.1 supports understanding images, deep step-by-step reasoning, calling functions / tools, strict JSON output, fine-tuning on your own data. It streams replies by default.
GPT-5.1 was released in November 2025, with training data cut off around July 2025.
Models in a similar class include GPT-5, GPT-5 Codex, GPT-5.1-Codex. The "Similar models" section below this FAQ links into each.

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