name = "grok-code-fast-1" description = "Fast Grok model for responsive chat, reasoning, and tool-assisted work" family = "grok" release_date = "2026-01" last_updated = "2026-01" attachment = true reasoning = false temperature = true tool_call = true structured_output = true open_weights = false [cost] input = 0.18 output = 1.35 [limit] context = 256000 output = 256000 [modalities] input = ["text", "image"] output = ["text"]