Kimi K2.5 vs Grok 4.20 Multi Agent
At a Glance
| Compare |  Kimi K2.5Moonshot AI | |
|---|---|---|
| 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 | $0.45Deepinfra ↗ · Aug 29, 2026 | $1.25Xai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $2.25Deepinfra ↗ · Aug 29, 2026 | $2.50Xai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 262K | 1,000K |
| Model facts checked | Aug 28, 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 | Kimi-K2.5 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,445.64100% of row best · rating · kimi-k2.5-thinking; 95% CI [1442.30343195, 1448.97544647]; votes 70513; rank 53 | 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 | 1,266.99100% of row best · rating · kimi-k2.5-thinking; 95% CI [1261.13170482, 1272.84453452]; votes 26646; rank 39 | 1,259.5599% 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 | 0 benchmark winsNo 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 | Kimi-K2.5 | Grok 4.20 Multi-Agent |
|---|---|---|
| Developer | Moonshot AI | xAI |
| Family | Kimi K2 5 | Grok 4 20 |
| Model | Kimi-K2.5 | Grok 4.20 Multi-Agent |
| Version | Kimi-K2.5 | Grok 4.20 Multi-Agent |
| Lifecycle | active | preview |
| Released | 2026-01-27 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 262K | 1,000K |
| Total parameters | 1T | Unknown |
| Active parameters | 32B | Unknown |
| License | other | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | Deepinfra (Standard), Hugging Face (Standard), Openrouter (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, tools | generation, reasoning, research, tools |
Kimi K2.5 Capabilities
Grok 4.20 Multi Agent Capabilities
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Primary Evidence
Sources and Freshness
Questions
Kimi K2.5 vs Grok 4.20 Multi Agent FAQs
Is Kimi K2.5 or Grok 4.20 Multi Agent better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Kimi K2.5 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, Kimi K2.5 or Grok 4.20 Multi Agent?+
Kimi K2.5 is $0.45 and Grok 4.20 Multi Agent is $1.25 per million tokens, so Kimi K2.5 is cheaper on this metric. Kimi K2.5 is $2.25 and Grok 4.20 Multi Agent is $2.50 per million tokens, so Kimi K2.5 is cheaper on this metric.
Which has a larger context window, Kimi K2.5 or Grok 4.20 Multi Agent?+
Grok 4.20 Multi Agent has the larger sourced context window. Kimi K2.5 supports 262K and Grok 4.20 Multi Agent supports 1,000K.
Which performs better in benchmarks, Kimi K2.5 or Grok 4.20 Multi Agent?+
There is no overall benchmark winner: Neither model leads outside the score tolerance on the verified common benchmarks.
Can Kimi K2.5 or Grok 4.20 Multi Agent be self-hosted?+
Kimi K2.5 is the only model in this pair currently marked as self-hostable. Kimi K2.5 is open weight; Grok 4.20 Multi Agent is not marked open weight.
Can Kimi K2.5 and Grok 4.20 Multi Agent understand images?+
Kimi K2.5 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, Kimi K2.5 or Grok 4.20 Multi Agent?+
Neither has a larger sourced maximum output. Kimi K2.5 is — and Grok 4.20 Multi Agent is —.
Do Kimi K2.5 and Grok 4.20 Multi Agent support reasoning and tool use?+
Kimi K2.5: 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, Kimi K2.5 or Grok 4.20 Multi Agent?+
Kimi K2.5 has 3 sourced provider routes; Grok 4.20 Multi Agent has 1, so Kimi K2.5 has broader tracked availability.
Which offers better value, Kimi K2.5 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.