Grok 4.3 vs Grok Build 0.1
Benchmark Performance
Available Benchmarks
| Benchmark | Grok 4.3 | Grok Build 0.1 |
|---|---|---|
| LMArena Agent Arenaagent-2026-08-31-011508720696 · outcome_score · leader | -18.8192% of row best · score · Grok 4.3; 95% CI [-20.43612107, -17.19188295]; sessions 82745; observations 1299547; rank 55 | -11.31100% of row best · score · Grok Build 0.1; 95% CI [-12.50212956, -10.11963476]; sessions 74459; observations 5587414; rank 53 |
| LiveBench2026-06-25 · overall · leader | 69.2797% of row best · percent · grok-4.3 · 11,184 output tokens / case | 71.09100% of row best · percent · grok-build-0.1 · 980 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 2 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | Grok 4.3 | Grok Build 0.1 |
|---|---|---|
| Developer | xAI | xAI |
| Family | Grok 4 | Grok Build |
| Model | Grok 4.3 | Grok Build 0.1 |
| Version | Grok 4.3 | Grok Build 0.1 |
| Lifecycle | active | preview |
| Released | 2026-06-17 | 2026-05-29 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000,000 | 256,000 |
| 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 | Xai (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, structured_outputs, tools |
14 comparable fields · 6 material differences · Pair passes the primary-source comparison gate
Grok 4.3 Capabilities
Grok Build 0.1 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Grok 4.3xAI | vs | Grok 4.5xAI | family variantsimage, text |
 GPT-5.3-CodexOpenAI | vs | cross-developer peersimage, text | |
Grok 4.5xAI | vs | family variantsimage, text | |
Grok 4.3xAI | vs | Grok 4.6xAI | family variantsimage, text |
Claude Opus 4.6Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
Claude Sonnet 4.6Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
 Gemma 4 31BGoogle DeepMind | vs | cross-developer peersimage, text | |
Claude Sonnet 4.5Anthropic | vs | cross-developer peersimage, text | |
GPT-5.4 MiniOpenAI | vs | cross-developer peersimage, text | |
GPT-5.4 NanoOpenAI | vs | cross-developer peersimage, text | |
GPT-5.4 ProOpenAI | vs | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Grok 4.3 vs Grok Build 0.1 FAQs
Is Grok 4.3 or Grok Build 0.1 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Grok 4.3 and Grok Build 0.1, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Grok 4.3 or Grok Build 0.1?+
Grok 4.3 is $1.25 and Grok Build 0.1 is $1.00 per million tokens, so Grok Build 0.1 is cheaper on this metric. Grok 4.3 is $2.50 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, Grok 4.3 or Grok Build 0.1?+
Grok 4.3 has the larger sourced context window. Grok 4.3 supports 1,000,000 and Grok Build 0.1 supports 256,000.
Which performs better in benchmarks, Grok 4.3 or Grok Build 0.1?+
Grok Build 0.1 leads the current overall benchmark count. The result uses 2 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can Grok 4.3 or Grok Build 0.1 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Grok 4.3 is not marked open weight; Grok Build 0.1 is not marked open weight.
Can Grok 4.3 and Grok Build 0.1 understand images?+
Grok 4.3 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, Grok 4.3 or Grok Build 0.1?+
Neither has a larger sourced maximum output. Grok 4.3 is — and Grok Build 0.1 is —.
Do Grok 4.3 and Grok Build 0.1 support reasoning and tool use?+
Grok 4.3: 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, Grok 4.3 or Grok Build 0.1?+
Grok 4.3 has 1 sourced provider route; Grok Build 0.1 has 1, a tie.
Which offers better value, Grok 4.3 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.