o3 vs Grok Build 0.1
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | o3 | Grok Build 0.1 |
|---|---|---|
| CostLower is better · Published-token output estimate | UnrankedNot in the 36-model eligible cohort | #1 of 36$0.0020 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 | o3 | Grok Build 0.1 |
|---|---|---|
| Developer | OpenAI | xAI |
| Family | O3 | Grok Build |
| Model | o3 | Grok Build 0.1 |
| Version | o3 | Grok Build 0.1 |
| Lifecycle | active | preview |
| Released | 2025-04-16 | 2026-05-29 |
| Knowledge cutoff | 2024-06-01 | Unknown |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 200K | 256K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Openai (Standard), Openrouter (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, structured_outputs, tools |
14 comparable fields · 8 material differences · Pair passes the primary-source comparison gate
o3 Capabilities
Grok Build 0.1 Capabilities
Internal Comparison Graph
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o3OpenAI | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | o3OpenAI | cross-developer peersimage, text |
 Mistral Large 3Mistral AI | vs | o3OpenAI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
o3 vs Grok Build 0.1 FAQs
Is o3 or Grok Build 0.1 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both o3 and Grok Build 0.1, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, o3 or Grok Build 0.1?+
o3 is $1.00 and Grok Build 0.1 is $1.00 per million tokens, so they are tied on this metric. o3 is $4.00 and Grok Build 0.1 is $2.00 per million tokens, so Grok Build 0.1 is cheaper on this metric.
Which has a larger context window, o3 or Grok Build 0.1?+
Grok Build 0.1 has the larger sourced context window. o3 supports 200K and Grok Build 0.1 supports 256K.
Which performs better in benchmarks, o3 or Grok Build 0.1?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can o3 or Grok Build 0.1 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. o3 is not marked open weight; Grok Build 0.1 is not marked open weight.
Can o3 and Grok Build 0.1 understand images?+
o3 is documented with image input; Grok Build 0.1 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, o3 or Grok Build 0.1?+
Neither has a larger sourced maximum output. o3 is 100K and Grok Build 0.1 is —.
Do o3 and Grok Build 0.1 support reasoning and tool use?+
o3: reasoning, tool calling, and image input. Grok Build 0.1: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, o3 or Grok Build 0.1?+
o3 has 2 sourced provider routes; Grok Build 0.1 has 1, so o3 has broader tracked availability.
Which offers better value, o3 or Grok Build 0.1?+
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.