Gemini 3 Flash vs Grok 4.20 Multi Agent
At a Glance
| Compare |  Gemini 3 FlashGoogle DeepMind | |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | UnrankedNot in the 46-model eligible cohort | #22 of 4663.4 score · 2/3 sources · provisional · missing LiveBench · full-core range 42.3–75.6 |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.50Google AI ↗ · Aug 29, 2026 | $1.25Xai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $3.00Google AI ↗ · Aug 29, 2026 | $2.50Xai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 1,049K | 1,000K |
| Model facts checked | Aug 29, 2026View model evidence → | Aug 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | Gemini 3 Flash | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Search Arenasearch-2026-08-24-d25aabda0010 · arena_rating · statistical tie | 1,198.09100% of row best · rating · gemini-3-flash-grounding; 95% CI [1193.35426288, 1202.82591975]; votes 149334; rank 15 | 1,204.11100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1198.80874858, 1209.41102574]; votes 109553; rank 13 |
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · leader | 1,442.4099% of row best · rating · gemini-3-flash (thinking-minimal); 95% CI [1439.30492660, 1445.49388279]; votes 85799; rank 61 | 1,449.94100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1446.16660741, 1453.71198087]; votes 60777; rank 46 |
| LMArena Vision Arenavision-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,265.37100% of row best · rating · gemini-3-flash (thinking-minimal); 95% CI [1259.84136462, 1270.89646969]; votes 34860; rank 41 | 1,259.55100% of row best · rating · grok-4.20-multi-agent-beta-0309; 95% CI [1253.19837141, 1265.89693020]; votes 22925; rank 46 |
| Overall ResultCounted from the protocol-matched rows above · 2 ties | 0 benchmark winsNo overall winner | 1 benchmark winNo overall winner |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | Gemini 3 Flash | Grok 4.20 Multi-Agent |
|---|---|---|
| Developer | Google DeepMind | xAI |
| Family | Gemini 3 | Grok 4 20 |
| Model | Gemini 3 Flash | Grok 4.20 Multi-Agent |
| Version | Gemini 3 Flash | Grok 4.20 Multi-Agent |
| Lifecycle | preview | preview |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image, Video, Audio, Document | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,000K |
| 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 | Google AI (Standard), Google Gemini (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, tools | generation, reasoning, research, tools |
Gemini 3 Flash Capabilities
Grok 4.20 Multi Agent Capabilities
Related Comparisons
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|---|---|---|---|
Gemini 3 FlashGoogle DeepMind | vs |  GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Gemini 3 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs | Gemini 3.1 ProGoogle DeepMind | family variantstext |
 DeepSeek-V4.1-FlashDeepSeek | vs | Gemini 3 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs | Grok 4.6xAI | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | Gemini 3 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Gemini 3 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 3 FlashGoogle DeepMind | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Gemini 3 Flash vs Grok 4.20 Multi Agent FAQs
Is Gemini 3 Flash or Grok 4.20 Multi Agent better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemini 3 Flash and Grok 4.20 Multi Agent, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemini 3 Flash or Grok 4.20 Multi Agent?+
Gemini 3 Flash is $0.50 and Grok 4.20 Multi Agent is $1.25 per million tokens, so Gemini 3 Flash is cheaper on this metric. Gemini 3 Flash is $3.00 and Grok 4.20 Multi Agent is $2.50 per million tokens, so Grok 4.20 Multi Agent is cheaper on this metric.
Which has a larger context window, Gemini 3 Flash or Grok 4.20 Multi Agent?+
Gemini 3 Flash has the larger sourced context window. Gemini 3 Flash supports 1,049K and Grok 4.20 Multi Agent supports 1,000K.
Which performs better in benchmarks, Gemini 3 Flash or Grok 4.20 Multi Agent?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Gemini 3 Flash or Grok 4.20 Multi Agent be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Gemini 3 Flash is not marked open weight; Grok 4.20 Multi Agent is not marked open weight.
Can Gemini 3 Flash and Grok 4.20 Multi Agent understand images?+
Gemini 3 Flash is documented with image input; Grok 4.20 Multi Agent is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Gemini 3 Flash or Grok 4.20 Multi Agent?+
Neither has a larger sourced maximum output. Gemini 3 Flash is 66K and Grok 4.20 Multi Agent is —.
Do Gemini 3 Flash and Grok 4.20 Multi Agent support reasoning and tool use?+
Gemini 3 Flash: reasoning, tool calling, and image input. Grok 4.20 Multi Agent: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Gemini 3 Flash or Grok 4.20 Multi Agent?+
Gemini 3 Flash has 2 sourced provider routes; Grok 4.20 Multi Agent has 1, so Gemini 3 Flash has broader tracked availability.
Which offers better value, Gemini 3 Flash or Grok 4.20 Multi Agent?+
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.