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Select Free Model (zero cost): Random Free Model (auto-selected by OpenRouter) Arcee Trinity Large Preview (free) – Strong general & coding StepFun Step 3.5 Flash (free) – Fast, 256K context Z.ai GLM 4.5 Air (free) – Very strong general-purpose DeepSeek R1 (free) – Excellent reasoning Upstage Solar Pro 3 (free) – 128K context (note: may end March 2026) NVIDIA Nemotron Nano 30B (free) – Good all-rounder Qwen3 Coder (free) – Top free coding model, 262K context Qwen3 Next 80B Instruct (free) – Strong instruct following

Using only $0 models via OpenRouter. Availability can change — check OpenRouter free models for the latest list and add more IDs here.

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