Mistral-Medium-3.5-128B vs Kimi-K2.6
Benchmark Performance
Available Benchmarks
| Benchmark | Mistral-Medium-3.5-128B | Kimi-K2.6 |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader | 1,421.1698% of row best · rating · mistral-medium-3.5; 95% CI [1414.62812191, 1427.69573067]; votes 11017; rank 98 | 1,455.01100% of row best · rating · kimi-k2.6; 95% CI [1450.48846324, 1459.52803920]; votes 37573; rank 34 |
| LMArena Vision Arenavision-2026-08-27-011508720696 · arena_rating · leader | 1,222.1895% of row best · rating · mistral-medium-3.5; 95% CI [1212.39755732, 1231.95907443]; votes 5091; rank 67 | 1,280.71100% of row best · rating · kimi-k2.6; 95% CI [1273.64165646, 1287.78511818]; votes 15378; rank 27 |
| 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 | Mistral-Medium-3.5-128B | Kimi-K2.6 |
|---|---|---|
| Developer | Mistral AI | Moonshot AI |
| Family | Mistral Medium 3 5 128b | Kimi K2 6 |
| Model | Mistral-Medium-3.5-128B | Kimi-K2.6 |
| Version | Mistral-Medium-3.5-128B | Kimi-K2.6 |
| Lifecycle | active | active |
| Released | Unknown | 2026-04-20 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 262,144 | 262,144 |
| Total parameters | 127,704,210,176 | 1,026,879,376,368 |
| Active parameters | Unknown | 32,000,000,000 |
| License | other | other |
| Open weights | Yes | Yes |
| API available | Unknown | Yes |
| Self-hostable | Yes | Yes |
| Provider access | Unknown | Deepinfra (Standard), Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
13 comparable fields · 5 material differences · Pair passes the primary-source comparison gate
Mistral-Medium-3.5-128B Capabilities
Kimi-K2.6 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Kimi-K2.6Moonshot AI | vs | Kimi K2.7 CodeMoonshot AI | family variantsimage, text |
Kimi-K2.5Moonshot AI | vs | Kimi-K2.6Moonshot AI | family variantsembedding, image, text |
Kimi-K2.6Moonshot AI | vs | Kimi-K3Moonshot AI | family variantsembedding, image, text |
Mistral-Medium-3.5-128BMistral AI | vs | Mistral-Small-4-119B-2603Mistral AI | family variantsimage, text |
Mistral-Medium-3.5-128BMistral AI | vs | Mistral Large 3Mistral AI | family variantsimage, text |
| vs | Kimi-K2.6Moonshot AI | cross-developer peersimage, text | |
| vs | Mistral-Medium-3.5-128BMistral AI | cross-developer peersimage, text | |
Mistral-Medium-3.5-128BMistral AI | vs | Kimi-K2.5Moonshot AI | cross-developer peersimage, text |
Ministral-3-8B-Reasoning-2512Mistral AI | vs | Kimi-K2.6Moonshot AI | cross-developer peersimage, text |
| vs | Mistral-Medium-3.5-128BMistral AI | cross-developer peersimage, text | |
| vs | Mistral-Medium-3.5-128BMistral AI | cross-developer peersimage, text | |
Kimi-K2-InstructMoonshot AI | vs | Kimi-K2.6Moonshot AI | family variantstext |
Primary Evidence
Sources and Freshness
Questions
Mistral-Medium-3.5-128B vs Kimi-K2.6 FAQs
Is Mistral-Medium-3.5-128B or Kimi-K2.6 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Mistral-Medium-3.5-128B and Kimi-K2.6, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Mistral-Medium-3.5-128B or Kimi-K2.6?+
Only Kimi-K2.6 has a directly sourced input price: $0.75 per million tokens. Only Kimi-K2.6 has a directly sourced output price: $3.50 per million tokens.
Which has a larger context window, Mistral-Medium-3.5-128B or Kimi-K2.6?+
Neither model has a larger sourced context window in this comparison. Mistral-Medium-3.5-128B is 262,144 and Kimi-K2.6 is 262,144.
Which performs better in benchmarks, Mistral-Medium-3.5-128B or Kimi-K2.6?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Mistral-Medium-3.5-128B or Kimi-K2.6 be self-hosted?+
Both models have the same recorded self-hosting status: supported. Mistral-Medium-3.5-128B is open weight; Kimi-K2.6 is open weight.
Can Mistral-Medium-3.5-128B and Kimi-K2.6 understand images?+
Mistral-Medium-3.5-128B is documented with image input; Kimi-K2.6 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Mistral-Medium-3.5-128B or Kimi-K2.6?+
Neither has a larger sourced maximum output. Mistral-Medium-3.5-128B is — and Kimi-K2.6 is —.
Do Mistral-Medium-3.5-128B and Kimi-K2.6 support reasoning and tool use?+
Mistral-Medium-3.5-128B: reasoning, tool calling, and image input. Kimi-K2.6: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Mistral-Medium-3.5-128B or Kimi-K2.6?+
Mistral-Medium-3.5-128B has 0 sourced provider routes; Kimi-K2.6 has 5, so Kimi-K2.6 has broader tracked availability.
Which offers better value, Mistral-Medium-3.5-128B or Kimi-K2.6?+
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.