Kimi K3 vs GLM 5.3
Market Position
LiveBench Quality Versus Estimated Output Cost
This current-market view appears only when both compared models are reviewed current models with publisher-reported LiveBench token accounting and current sourced USD output rates.
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | Kimi-K3 | GLM-5.3 |
|---|---|---|
| CostLower is better · Published-token output estimate | #24 of 36$0.194 per LiveBench case | #28 of 36$0.248 per LiveBench case |
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-K3 | GLM-5.3 |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · statistical tie | 1,476.31100% of row best · rating · kimi-k3-max; 95% CI [1470.86166728, 1481.76254962]; votes 17895; rank 16 | 1,474.49100% of row best · rating · glm-5.3-max; 95% CI [1467.12172899, 1481.86064533]; votes 7401; rank 18 |
| LiveBench2026-06-25 · overall · leader | 81.02100% of row best · percent · kimi-k3 · 13,647 output tokens / case | 79.1598% of row best · percent · glm-5.3 · 62,090 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above · 1 tie | 1 benchmark winOverall 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 | Kimi-K3 | GLM-5.3 |
|---|---|---|
| Developer | Moonshot AI | Z.ai |
| Family | Kimi K3 | Glm 5 3 |
| Model | Kimi-K3 | GLM-5.3 |
| Version | Kimi-K3 | GLM-5.3 |
| Lifecycle | active | active |
| Released | 2026-07-16 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,000K |
| Total parameters | 2.8T | Unknown |
| Active parameters | 104B | 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) | Deepinfra (Standard), Fireworks Ai (Standard), Together Ai (Standard), Z.ai (Standard) |
| Capabilities | chat, generation, reasoning | agents, chat, reasoning, structured_outputs, tools |
13 comparable fields · 10 material differences · Pair passes the primary-source comparison gate
Kimi K3 Capabilities
GLM 5.3 Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Kimi K3 vs GLM 5.3 FAQs
Is Kimi K3 or GLM 5.3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Kimi K3 and GLM 5.3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Kimi K3 or GLM 5.3?+
Kimi K3 is $2.85 and GLM 5.3 is $1.20 per million tokens, so GLM 5.3 is cheaper on this metric. Kimi K3 is $14.25 and GLM 5.3 is $4.00 per million tokens, so GLM 5.3 is cheaper on this metric.
Which has a larger context window, Kimi K3 or GLM 5.3?+
Kimi K3 has the larger sourced context window. Kimi K3 supports 1,049K and GLM 5.3 supports 1,000K.
Which performs better in benchmarks, Kimi K3 or GLM 5.3?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Kimi K3 or GLM 5.3 be self-hosted?+
Kimi K3 is the only model in this pair currently marked as self-hostable. Kimi K3 is open weight; GLM 5.3 is not marked open weight.
Can Kimi K3 and GLM 5.3 understand images?+
Kimi K3 is documented with image input; GLM 5.3 is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Kimi K3 or GLM 5.3?+
Neither has a larger sourced maximum output. Kimi K3 is — and GLM 5.3 is 131K.
Do Kimi K3 and GLM 5.3 support reasoning and tool use?+
Kimi K3: reasoning and image input. GLM 5.3: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Kimi K3 or GLM 5.3?+
Kimi K3 has 5 sourced provider routes; GLM 5.3 has 4, so Kimi K3 has broader tracked availability.
Which offers better value, Kimi K3 or GLM 5.3?+
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.