MiniMax M3 vs Grok 4.3
Benchmark Performance
Available Benchmarks
| Benchmark | MiniMax-M3 | Grok 4.3 |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader | 1,435.20100% of row best · rating · minimax-m3; 95% CI [1430.86827835, 1439.53977389]; votes 44544; rank 77 | 1,397.9797% of row best · rating · grok-4.3; 95% CI [1394.22069381, 1401.72787538]; votes 65024; rank 141 |
| LMArena Vision Arenavision-2026-08-27-011508720696 · arena_rating · leader | 1,255.42100% of row best · rating · minimax-m3; 95% CI [1247.93588333, 1262.90862002]; votes 13390; rank 44 | 1,227.7798% of row best · rating · grok-4.3; 95% CI [1221.16111143, 1234.37137614]; votes 20787; rank 65 |
| LiveBench2026-06-25 · overall · leader | 70.26100% of row best · percent · minimax-m3 · 15,530 output tokens / case | 69.2799% of row best · percent · grok-4.3 · 11,184 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 3 benchmark winsOverall lead | 0 benchmark wins |
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 | MiniMax-M3 | Grok 4.3 |
|---|---|---|
| Developer | MiniMax | xAI |
| Family | Minimax M3 | Grok 4 |
| Model | MiniMax-M3 | Grok 4.3 |
| Version | MiniMax-M3 | Grok 4.3 |
| Lifecycle | active | active |
| Released | 2026-06-01 | 2026-06-17 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,000K |
| Total parameters | 427B | Unknown |
| Active parameters | 23B | Unknown |
| License | other | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | Deepinfra (Standard), Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, structured_outputs, tools |
14 comparable fields · 10 material differences · Pair passes the primary-source comparison gate
MiniMax M3 Capabilities
Grok 4.3 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
MiniMax-M2.7MiniMax | vs | MiniMax-M3MiniMax | family variantstext |
MiniMax-M3MiniMax | vs |  GPT-6 AstraOpenAI | cross-developer peersimage, text |
MiniMax-M3MiniMax | vs | Claude Fable 5.1Anthropic | cross-developer peersimage, text |
MiniMax-M3MiniMax | vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
MiniMax-M3MiniMax | vs |  DeepSeek-V4-ProDeepSeek | cross-developer peerstext |
MiniMax-M3MiniMax | vs | Grok 4.6xAI | cross-developer peersimage, text |
MiniMax-M3MiniMax | vs |  Qwen3.8-MaxQwen | cross-developer peersimage, text |
MiniMax-M3MiniMax | vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text |
MiniMax-M3MiniMax | vs |  GLM-5.3Z.ai | cross-developer peerstext |
MiniMax-M3MiniMax | vs |  Hy4 previewTencent | cross-developer peerstext |
MiniMax-M3MiniMax | vs | Seed 2.1 ProByteDance Seed | cross-developer peersimage, text |
MiniMax-M3MiniMax | vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
MiniMax M3 vs Grok 4.3 FAQs
Is MiniMax M3 or Grok 4.3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both MiniMax M3 and Grok 4.3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, MiniMax M3 or Grok 4.3?+
MiniMax M3 is $0.28 and Grok 4.3 is $1.25 per million tokens, so MiniMax M3 is cheaper on this metric. MiniMax M3 is $1.10 and Grok 4.3 is $2.50 per million tokens, so MiniMax M3 is cheaper on this metric.
Which has a larger context window, MiniMax M3 or Grok 4.3?+
MiniMax M3 has the larger sourced context window. MiniMax M3 supports 1,049K and Grok 4.3 supports 1,000K.
Which performs better in benchmarks, MiniMax M3 or Grok 4.3?+
MiniMax M3 leads the current overall benchmark count. The result uses 3 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can MiniMax M3 or Grok 4.3 be self-hosted?+
MiniMax M3 is the only model in this pair currently marked as self-hostable. MiniMax M3 is open weight; Grok 4.3 is not marked open weight.
Can MiniMax M3 and Grok 4.3 understand images?+
MiniMax M3 is documented with image input; Grok 4.3 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, MiniMax M3 or Grok 4.3?+
Neither has a larger sourced maximum output. MiniMax M3 is — and Grok 4.3 is —.
Do MiniMax M3 and Grok 4.3 support reasoning and tool use?+
MiniMax M3: reasoning, tool calling, and image input. Grok 4.3: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, MiniMax M3 or Grok 4.3?+
MiniMax M3 has 5 sourced provider routes; Grok 4.3 has 1, so MiniMax M3 has broader tracked availability.
Which offers better value, MiniMax M3 or Grok 4.3?+
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.