Grok 3 Mini vs Grok Code Fast 1

Across our 12-test suite Grok 3 Mini (A) wins 5 tests, Grok Code Fast 1 (B) wins 1, and 6 tests tie. Detailed walk-through: 1) tool calling: A=5 vs B=4 — Grok 3 Mini tied for 1st ("tied for 1st with 16 other models out of 54 tested"); Code Fast 1 ranks 18 of 54. This means Grok 3 Mini is measurably better at selecting functions, argument accuracy, and sequencing in our tests. 2) long context: A=5 vs B=4 — Grok 3 Mini tied for 1st out of 55; Code Fast 1 ranks 38 of 55. For tasks requiring retrieval across 30K+ tokens (large contexts, long docs), Grok 3 Mini performed substantially better. 3) faithfulness: A=5 vs B=4 — Grok 3 Mini tied for 1st (1 of 55 tied with 32 others); Code Fast 1 ranks 34. Grok 3 Mini sticks to source material more reliably in our testing. 4) persona consistency: A=5 vs B=4 — Grok 3 Mini tied for 1st; Code Fast 1 ranks 38. 5) constrained rewriting: A=4 vs B=3 — Grok 3 Mini ranks 6 of 53 (strong at compression within hard limits), Code Fast 1 ranks 31. These five are Grok 3 Mini's wins (tool-calling, long-context, faithfulness, persona consistency, constrained rewriting). Grok Code Fast 1's clear win is agentic planning: B=5 vs A=3 — Code Fast 1 tied for 1st ("tied for 1st with 14 other models out of 54 tested"), while Grok 3 Mini ranks 42 of 54; this indicates Code Fast 1 is superior at goal decomposition and failure recovery in multi-step coding/agent workflows. The remaining tests tie: structured output (4/4, both rank 26), strategic analysis (3/3, both rank 36), creative problem solving (3/3, rank 30), classification (4/4, tied for 1st), safety calibration (2/2, rank 12), and multilingual (4/4, rank 36). Practically: Grok 3 Mini is a better fit when you need long context, reliable adherence to sources, and precise tool orchestration; Grok Code Fast 1 is preferable when you need robust agentic planning for automated coding pipelines.

We use the payload per-mTok prices as given (assumes 'per mTok' = per 1,000 tokens for these examples). Grok 3 Mini: input $0.30 + output $0.50 = $0.80 per 1k tokens → $800 for 1M tokens, $8,000 for 10M, $80,000 for 100M. Grok Code Fast 1: input $0.20 + output $1.50 = $1.70 per 1k tokens → $1,700 for 1M, $17,000 for 10M, $170,000 for 100M. The biggest driver is output cost: $1.50 vs $0.50/mTok (3× higher on Code Fast 1). Teams with long responses, heavy inference volumes, or tight budgets should prefer Grok 3 Mini for cost-efficiency. Teams that need agentic planning automation and accept higher runtime costs may justify Code Fast 1 despite the 2–3× higher monthly bill in typical volumes.

Choose Grok 3 Mini if you need reliable long-context retrieval, top-tier tool calling, strong faithfulness/persona maintenance, or cost-effective production at scale (output $0.50/mTok). Choose Grok Code Fast 1 if your primary need is agentic planning and complex multi-step coding automation (agentic planning = 5), and you can absorb higher output costs ($1.50/mTok) for those capabilities.