Phi-4 Reasoning vs Grok 4.6
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | Phi-4-reasoning | Grok 4.6 |
|---|---|---|
| CostLower is better · Published-token output estimate | UnrankedNot in the 36-model eligible cohort | #18 of 36$0.097 per LiveBench case |
Ranks come from the current complete eligible cohorts. Green highlights appear only when both models are ranked in the same metric. Missing required inputs remain unranked, and the three dimensions are not collapsed into an overall winner.
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Phi-4-reasoning | Grok 4.6 |
|---|---|---|
| Developer | Microsoft | xAI |
| Family | Phi 4 Reasoning | Grok 4 |
| Model | Phi-4-reasoning | Grok 4.6 |
| Version | Phi-4-reasoning | Grok 4.6 |
| Lifecycle | active | active |
| Released | 2025-04-30 | Unknown |
| Knowledge cutoff | Unknown | 2026-02-01 |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
| Context window | 33K | 500K |
| Total parameters | 14.7B | Unknown |
| Active parameters | Unknown | Unknown |
| License | mit | Unknown |
| Open weights | Yes | No |
| API available | Unknown | Yes |
| Self-hostable | Yes | No |
| Provider access | Unknown | Xai (Standard) |
| Capabilities | chat, generation, reasoning | chat, generation, reasoning, tools |
11 comparable fields · 9 material differences · Pair passes the primary-source comparison gate
Phi-4 Reasoning Capabilities
Grok 4.6 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Phi-4-reasoningMicrosoft | vs | Grok 4.5xAI | cross-developer peerstext |
Phi-4-reasoningMicrosoft | vs |  GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Phi-4-reasoningMicrosoft | cross-developer peerstext |
 Gemini 3.1 ProGoogle DeepMind | vs | Phi-4-reasoningMicrosoft | cross-developer peerstext |
 DeepSeek-V4-ProDeepSeek | vs | Phi-4-reasoningMicrosoft | cross-developer peerstext |
Phi-4-reasoningMicrosoft | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
Phi-4-reasoningMicrosoft | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | Phi-4-reasoningMicrosoft | cross-developer peerstext |
Phi-4-reasoningMicrosoft | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Phi-4-reasoningMicrosoft | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Phi-4-reasoningMicrosoft | cross-developer peerstext |
Phi-4-reasoningMicrosoft | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Phi-4 Reasoning vs Grok 4.6 FAQs
Is Phi-4 Reasoning or Grok 4.6 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Phi-4 Reasoning and Grok 4.6, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Phi-4 Reasoning or Grok 4.6?+
Only Grok 4.6 has a directly sourced input price: $2.00 per million tokens. Only Grok 4.6 has a directly sourced output price: $6.00 per million tokens.
Which has a larger context window, Phi-4 Reasoning or Grok 4.6?+
Grok 4.6 has the larger sourced context window. Phi-4 Reasoning supports 33K and Grok 4.6 supports 500K.
Which performs better in benchmarks, Phi-4 Reasoning or Grok 4.6?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Phi-4 Reasoning or Grok 4.6 be self-hosted?+
Phi-4 Reasoning is the only model in this pair currently marked as self-hostable. Phi-4 Reasoning is open weight; Grok 4.6 is not marked open weight.
Can Phi-4 Reasoning and Grok 4.6 understand images?+
Phi-4 Reasoning is not documented with image input; Grok 4.6 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Phi-4 Reasoning or Grok 4.6?+
Neither has a larger sourced maximum output. Phi-4 Reasoning is — and Grok 4.6 is —.
Do Phi-4 Reasoning and Grok 4.6 support reasoning and tool use?+
Phi-4 Reasoning: reasoning. Grok 4.6: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Phi-4 Reasoning or Grok 4.6?+
Phi-4 Reasoning has 0 sourced provider routes; Grok 4.6 has 1, so Grok 4.6 has broader tracked availability.
Which offers better value, Phi-4 Reasoning or Grok 4.6?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.