GPT-5.1 by OpenAI demonstrates top-tier general intelligence, excellent coding ability, outstanding mathematical reasoning. View detailed benchmark data including scores across coding, math, reasoning, speed, and cost metrics.
General Benchmarks
Coding Benchmarks
Reasoning Benchmarks
Speed Benchmarks
Cost Benchmarks
Context Benchmarks
GPT-5.1 — Benchmark Scores Overview
Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).
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GPT-5.1 — Frequently Asked Questions
How intelligent is GPT-5.1?
GPT-5.1 scores 1464 on the Chatbot Arena ELO rating, making it one of the top-ranked AI model. This score is based on blind head-to-head human preference voting.
How much does GPT-5.1 cost?
GPT-5.1 costs $1.3 per 1M input tokens and $10.0 per 1M output tokens. This is mid-range pricing for its capability level.
How fast is GPT-5.1?
GPT-5.1 generates output at 95 tokens per second, which is moderate compared to other models. The time to first token is 350 ms.
How good is GPT-5.1 at coding?
GPT-5.1 achieves 76.3% on SWE-bench Verified, demonstrating excellent real-world software engineering capability. This benchmark tests the model's ability to resolve actual GitHub issues.
How good is GPT-5.1 at math and reasoning?
GPT-5.1 scores 95.0% on the MATH benchmark (competition-level mathematics). It also achieves 88.1% on GPQA Diamond, a graduate-level science reasoning benchmark.
What is the context window of GPT-5.1?
GPT-5.1 has a context window of 400K tokens. This determines how much text, conversation history, and code the model can process in a single request.
Who created GPT-5.1?
GPT-5.1 was created by OpenAI. It is classified as a flagship model in the AI Value Index.
Is GPT-5.1 open source?
No, GPT-5.1 is a proprietary model. It is available through OpenAI's API and compatible providers.