Comprehensive side-by-side LLM comparison
Claude Opus 4.1 is available on 3 providers. Both models have their strengths depending on your specific coding needs.
Anthropic
Claude Opus 4.1, released by Anthropic in August 2025, is a large language model from the Claude 4 family optimized for demanding reasoning, multi-step coding, and extended analysis tasks. It features a 200K token context window, 32K maximum output tokens, native image understanding, and extended thinking capabilities. Opus 4.1 targets complex problem-solving, multi-turn reasoning workflows, and applications requiring deep analysis with integrated tool use.
Kunlun Tech
Skywork-R1V3-38B, released by Kunlun Tech's Skywork AI team on July 9, 2025, is a 38 billion parameter multimodal reasoning model built on InternVL-38B with reinforcement learning post-training that enhances both visual and textual reasoning. It uses the GRPO algorithm and cold-start fine-tuning to improve reasoning across image and text modalities. Skywork-R1V3-38B targets open-source multimodal reasoning deployments requiring strong performance across vision-language benchmarks.
27 days newer
Skywork-R1V3-38B
Kunlun Tech
2025-07-09

Claude Opus 4.1
Anthropic
2025-08-05
Context window and performance specifications
Average performance across 1 common benchmarks
Claude Opus 4.1
Skywork-R1V3-38B
Claude Opus 4.1
2025-01
Available providers and their performance metrics
Claude Opus 4.1
Anthropic
AWS Bedrock
Google Cloud Vertex AI
Skywork-R1V3-38B
Claude Opus 4.1
Skywork-R1V3-38B
Claude Opus 4.1
Skywork-R1V3-38B