Kimi K2.6 vs GPT-5.6 Sol
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | Kimi-K2.6 | GPT-5.6 Sol |
|---|---|---|
| IntelligenceHigher is better · MM Intelligence v1.2 | UnrankedNot in the 22-model eligible cohort | #4 of 2285.2 score |
| CostLower is better · Published-token output estimate | #17 of 36$0.095 per LiveBench case | #20 of 36$0.117 per LiveBench case |
| EfficiencyHigher is better · MM Efficiency v1.0 | UnrankedNot in the 22-model eligible cohort | #3 of 2263.6 score |
Ranks come from the current complete eligible cohorts. Green highlights appear only when both models are ranked in the same metric. Missing required inputs remain unranked, and the three dimensions are not collapsed into an overall winner.
Benchmark Performance
Available Benchmarks
| Benchmark | Kimi-K2.6 | GPT-5.6 Sol |
|---|---|---|
| LMArena Document Arenadocument-2026-07-30-011508720696 · arena_rating · leader | 1,450.9098% of row best · rating · kimi-k2.6; 95% CI [1443.21872745, 1458.58325377]; votes 11181; rank 21 | 1,478.68100% of row best · rating · gpt-5.6-sol-xhigh; 95% CI [1461.94144922, 1495.42273628]; votes 1152; rank 11 |
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · statistical tie | 1,455.01100% of row best · rating · kimi-k2.6; 95% CI [1450.48846324, 1459.52803920]; votes 37573; rank 34 | 1,454.69100% of row best · rating · gpt-5.6-sol-xhigh; 95% CI [1449.58093424, 1459.80348090]; votes 23153; rank 35 |
| LMArena Vision Arenavision-2026-08-27-011508720696 · arena_rating · statistical tie | 1,280.71100% of row best · rating · kimi-k2.6; 95% CI [1273.64165646, 1287.78511818]; votes 15378; rank 27 | 1,276.90100% of row best · rating · gpt-5.6-sol-xhigh; 95% CI [1267.71657009, 1286.08047215]; votes 5837; rank 30 |
| LiveBench2026-06-25 · overall · leader | 74.1887% of row best · percent · kimi-k2.6-thinking · 27,001 output tokens / case | 85.26100% of row best · percent · gpt-5.6-sol-max · 11,729 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above · 2 ties | 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 | Kimi-K2.6 | GPT-5.6 Sol |
|---|---|---|
| Developer | Moonshot AI | OpenAI |
| Family | Kimi K2 6 | Gpt 5 6 |
| Model | Kimi-K2.6 | GPT-5.6 Sol |
| Version | Kimi-K2.6 | GPT-5.6 Sol |
| Lifecycle | active | active |
| Released | 2026-04-20 | Unknown |
| Knowledge cutoff | Unknown | 2026-02-16 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 262K | 1,050K |
| 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), Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
13 comparable fields · 8 material differences · Pair passes the primary-source comparison gate
Kimi K2.6 Capabilities
GPT-5.6 Sol Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Kimi K2.6 vs GPT-5.6 Sol FAQs
Is Kimi K2.6 or GPT-5.6 Sol better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Kimi K2.6 and GPT-5.6 Sol, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Kimi K2.6 or GPT-5.6 Sol?+
Kimi K2.6 is $0.75 and GPT-5.6 Sol is $2.00 per million tokens, so Kimi K2.6 is cheaper on this metric. Kimi K2.6 is $3.50 and GPT-5.6 Sol is $10.00 per million tokens, so Kimi K2.6 is cheaper on this metric.
Which has a larger context window, Kimi K2.6 or GPT-5.6 Sol?+
GPT-5.6 Sol has the larger sourced context window. Kimi K2.6 supports 262K and GPT-5.6 Sol supports 1,050K.
Which performs better in benchmarks, Kimi K2.6 or GPT-5.6 Sol?+
GPT-5.6 Sol leads the current overall benchmark count. The result uses 4 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can Kimi K2.6 or GPT-5.6 Sol be self-hosted?+
Kimi K2.6 is the only model in this pair currently marked as self-hostable. Kimi K2.6 is open weight; GPT-5.6 Sol is not marked open weight.
Can Kimi K2.6 and GPT-5.6 Sol understand images?+
Kimi K2.6 is documented with image input; GPT-5.6 Sol is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Kimi K2.6 or GPT-5.6 Sol?+
Neither has a larger sourced maximum output. Kimi K2.6 is — and GPT-5.6 Sol is 128K.
Do Kimi K2.6 and GPT-5.6 Sol support reasoning and tool use?+
Kimi K2.6: reasoning, tool calling, and image input. GPT-5.6 Sol: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Kimi K2.6 or GPT-5.6 Sol?+
Kimi K2.6 has 5 sourced provider routes; GPT-5.6 Sol has 2, so Kimi K2.6 has broader tracked availability.
Which offers better value, Kimi K2.6 or GPT-5.6 Sol?+
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.