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Moonshot AI: Kimi K2.8 Preview

Kimi coding model with more efficient thinking and up to 1M context, available through Kimi Code

Source-linked kimi-k2 Closed weights Released 2026-09-11
API record Report
InputT
OutputT
Input priceNot listed
Output priceNot listed
Context1.04858M
Max outputNot documented
Providers1
Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

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Providers offering Kimi K2.8 Preview
ProviderProvider model IDContextMax outputInputOutputCache readCapabilitiesDocs
Kimi For Coding (kimi.com) kimi-for-coding 1.04858M 32.768K — — — ReasoningTools Docs ↗

Capability badges appear only where the provider catalog explicitly lists support. A blank cell means the source is silent, not that the feature is absent.

Specification

Capabilities

Recorded from the source catalog and provider listings.

✓ Reasoning Yes
✓ Tool calling Yes
? Structured output Unknown
✓ Attachments Yes
✓ Vision input Yes
× Open weights No
Model family
kimi-k2
Knowledge cutoff
Not documented
License
Not documented
Release date
2026-09-11
Model ID
moonshotai/kimi-k2.8-preview
Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry
No published benchmark results

ModelBench does not infer quality from price, context size, or model name. When a source publishes a comparable result, it appears here with its version and link.

Read the methodology
Catalog activity

Change log

Field-level changes detected between successful source imports.

Full change log
No changes recorded

This record has not changed within the retained import history.

Public API

Use this record

Fetch the complete source-linked model record. No key, no account, no rate-limited tier.

API documentation
Endpoint
GET https://modelbench.lol/api/v1/models/moonshotai/kimi-k2.8-preview
curl
curl "https://modelbench.lol/api/v1/models/moonshotai/kimi-k2.8-preview"
Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is Kimi K2.8 Preview?

Kimi coding model with more efficient thinking and up to 1M context, available through Kimi Code. It is published by Moonshot AI and catalogued here from Models.dev.

What is the context length of Kimi K2.8 Preview?

Kimi K2.8 Preview accepts up to 1.04858M tokens of context.

Does Kimi K2.8 Preview support tool calling and structured output?

Provider catalogs list support for tool calling, reasoning, and image input.

Which providers serve Kimi K2.8 Preview?

1 provider list this model: Kimi For Coding (kimi.com).

Are the weights for Kimi K2.8 Preview open?

No. This model is served through hosted APIs only.

When was Kimi K2.8 Preview released?

The catalog records a release date of 2026-09-11, last verified Oct 24, 2026.

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