Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...
Tested on 23 benchmarks · BenchGecko score 42.3. Top scores: Lech Mazur Writing (85.4%), SWE-Bench verified (73.3%), GPQA diamond (69.7%).
Llama 3 8B Instruct scores 41.8 (99% as good) at $0.14/1M input · 99% cheaper
Real-world software engineering tasks from GitHub issues. Models must diagnose bugs and write patches that pass test suites. Human-verified subset of SWE-bench.
Unusual and adversarial machine learning challenges. Tests robustness of reasoning about edge cases in ML systems.
Capture-the-flag cybersecurity challenges. Tests vulnerability analysis, reverse engineering, cryptography, and exploitation skills.
Deceptively simple questions that humans find easy but AI models often get wrong. Tests common sense and reasoning gaps.
Mock AIME (American Invitational Mathematics Exam) problems from OTIS. Tests mathematical competition performance.
Original research-level math problems created by professional mathematicians. Problems are unpublished and cannot be memorized.
- Typemultimodal
- Context200K tokens (~100 books)
- ReleasedAug 2025
- LicenseProprietary
- StatusActive
- Cost / Message~$0.105
Frequently Asked Questions
Related Models
Qwen2.5 3B Instruct · AlibabaQwen3.6 35B A3B · Alibaba QwenR1 Distill Qwen 32B · DeepSeekLlama 3 8B Instruct · MetaGemini 1.5 Flash (May 2024) · Google DeepMindKey facts · as of 2026-10-05
- Claude Opus 4.1 by Anthropic. BenchGecko score 42.3, rank 187 of 312 scored models (normalized average of public benchmark scores).
- List price $15.00 input · $75.00 output per 1M tokens (as of 2026-10-05).
- Sold by 1 provider (as of 2026-10-05): Amazon Bedrock $15.00 in / $75.00 out.
How to cite · data as of 2026-10-05
Claude Opus 4.1 · benchmarks, pricing and providers. BenchGecko, data as of 2026-10-05. https://benchgecko.ai/model/claude-opus-4-1
Credit "Source: BenchGecko" with a link. Prices per provider and Gecko Tests are BenchGecko data (CC BY 4.0); benchmark scores keep their original source, listed in the JSON. JSON · llms.txt · MCP