Comprehensive side-by-side LLM comparison
Doubao 1.5 Vision Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
ByteDance
Doubao 1.5 Vision Pro, released by ByteDance via Volcano Engine on January 22, 2025, is a multimodal large language model from the Doubao 1.5 family with comprehensive upgrades to visual reasoning, OCR, and fine-grained image understanding. Built on a large-scale sparse MoE architecture, it targets vision-intensive workflows including document analysis, chart interpretation, and visual question answering.
OpenAI
GPT-5.1 Codex Max, released by OpenAI in November 2025, is an enhanced coding variant from the GPT-5.1 Codex line, designed for more complex software engineering tasks requiring additional reasoning depth. It targets large-scale code generation, automated refactoring, and sophisticated agentic development workflows.
9 months newer
Doubao 1.5 Vision Pro
ByteDance
2025-01-22

GPT-5.1 Codex Max
OpenAI
2025-11
Context window and performance specifications
Available providers and their performance metrics
Doubao 1.5 Vision Pro
ByteDance API
GPT-5.1 Codex Max
Doubao 1.5 Vision Pro
GPT-5.1 Codex Max
Doubao 1.5 Vision Pro
GPT-5.1 Codex Max