TheRouter.ai's 2026 multimodal API routing guide: choose GPT-4o, Claude, Gemini, or Qwen per workload
Four top models compared for vision, reasoning, long context, and cost-efficiency
TheRouter.ai's latest comparison in 2026 focuses on API routing for multimodal models rather than leaderboard rankings. The analysis covers four key models: Qwen3.7-Max (via DashScope, visual understanding added June 8, 2026, 1M context, ¥12/¥36 per MTok), GPT-4o (128K context, $2.50/$10 per MTok, the safest OpenAI-compatible default), Claude Sonnet 4.6 (1M context, extended thinking, $3/$15 per MTok, strong on reasoning over images and PDFs), and Gemini 2.5 Pro (1,048,576 context, $1.50/$12 per MTok, ideal for Google-native long-context multimodal input).
TheRouter emphasizes that production systems should route by workload: fast default vision calls to GPT-4o, expensive reasoning-over-image to Claude, China-access/CJK documents to Qwen, and long-context document calls to Gemini. Pricing and availability can shift quickly, so the tables serve as a routing baseline. The article also clarifies that 'OpenAI-compatible' means a provider exposes a chat-completions endpoint matching the OpenAI API contract after swapping API key, base URL, and model name.
- Qwen3.7-Max added visual understanding on June 8, 2026, with 1M context and mainland China pricing at ¥12/¥36 per MTok.
- Claude Sonnet 4.6 offers 1M context, extended thinking, and is best for multi-step reasoning over screenshots, PDFs, and code.
- TheRouter.ai recommends routing by workload: GPT-4o for default vision, Claude for image reasoning, Qwen for CJK/cost-sensitivity, Gemini for long-context analysis.
Why It Matters
Smart API routing saves costs and boosts performance by matching each task to the optimal multimodal model.