{"data":{"id":"x-ai/grok-4.20","canonical_slug":"x-ai/grok-4.20-20260309","hugging_face_id":"","name":"SpaceXAI: Grok 4.20","created":1774979019,"description":"Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...","context_length":2000000,"architecture":{"modality":"text+image+file->text","input_modalities":["text","image","file"],"output_modalities":["text"],"tokenizer":"Grok","instruct_type":null},"pricing":{"prompt":"0.00000125","completion":"0.0000025","web_search":"0.005","input_cache_read":"0.0000002","overrides":[{"min_prompt_tokens":200000,"prompt":"0.0000025","completion":"0.000005","input_cache_read":"0.0000004"}]},"top_provider":{"context_length":2000000,"max_completion_tokens":1800000,"is_moderated":false},"per_request_limits":null,"supported_parameters":["include_reasoning","logprobs","max_tokens","reasoning","response_format","seed","structured_outputs","temperature","tool_choice","tools","top_logprobs","top_p"],"default_parameters":{"temperature":null,"top_p":null,"top_k":null,"frequency_penalty":null,"presence_penalty":null,"repetition_penalty":null},"supported_voices":null,"knowledge_cutoff":"2025-09-01","expiration_date":null,"links":{"details":"/api/v1/models/x-ai/grok-4.20-20260309/endpoints"},"benchmarks":{"design_arena":[{"arena":"agents","category":"androidnative","elo":1070,"win_rate":35.1,"rank":35},{"arena":"agents","category":"fullstack","elo":1077,"win_rate":41,"rank":31},{"arena":"agents","category":"godotgamedev","elo":1089,"win_rate":38.5,"rank":26},{"arena":"agents","category":"htmlslides","elo":1180,"win_rate":45.7,"rank":13},{"arena":"agents","category":"mobileapps","elo":1130,"win_rate":45.4,"rank":35},{"arena":"agents","category":"webapps","elo":1175,"win_rate":49.7,"rank":24},{"arena":"models","category":"3d","elo":1237,"win_rate":52.8,"rank":38},{"arena":"models","category":"asciiart","elo":1204,"win_rate":48.5,"rank":21},{"arena":"models","category":"codecategories","elo":1245,"win_rate":52.6,"rank":38},{"arena":"models","category":"dataviz","elo":1239,"win_rate":52.5,"rank":38},{"arena":"models","category":"gamedev","elo":1232,"win_rate":51.6,"rank":40},{"arena":"models","category":"svg","elo":1203,"win_rate":53,"rank":30},{"arena":"models","category":"uicomponent","elo":1228,"win_rate":50,"rank":42},{"arena":"models","category":"website","elo":1248,"win_rate":52.6,"rank":37}]},"reasoning":{"mandatory":false,"default_enabled":false}}}