MoonshotaiGeneralReleased 4 September 2025
Kimi K2 0905 (exacto) pricing, context and benchmark
Kimi K2 0905 is the September update of [Kimi K2 0711](moonshotai/kimi-k2).
n/a
Input context
98K
Output context
$0.6
Official input
$2.5
Official output
n/a
AA index
01 · Model Overview
Everything that matters, in one table
Context, pricing, cache, modalities and tooling, from the model registry and Artificial Analysis.
| Model | Kimi K2 0905 (exacto) |
| Model ID | moonshotai/kimi-k2-0905:exacto |
| Provider | Moonshotai |
| Release date | 4 September 2025 |
| Status | Generally available |
| Input context | Provider default |
| Output context | 98,304 tokens |
| Official input pricing | $0.6 per 1M tokens |
| Official output pricing | $2.5 per 1M tokens |
| Cache read pricing | Not published |
| Market input pricing | $0.6 per 1M (cheapest route) |
| Market output pricing | $2.5 per 1M (cheapest route) |
| Input modalities | text |
| Output modalities | text |
| Reasoning control | Not exposed |
| Tool support | Text generation only |
| Tokenizer | Other |
| Provider routes | 1 endpoint |
| Artificial Analysis index | Not published |
| Speed | Not published |
| Knowledge cutoff | Not publicly stated |
Input and output support
| Modality | Input | Output | Billed at |
|---|---|---|---|
| Text | ✓ yes | ✓ yes | $0.6 in |
| Image | no | no | not supported |
| Audio | no | no | not supported |
| Video | no | no | not supported |
| File (PDF) | no | no | not supported |
02 · Overview
What is Kimi K2 0905 (exacto)?
Kimi K2 0905 is the September update of [Kimi K2 0711](moonshotai/kimi-k2).
It is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32...
Kimi K2 0905 (exacto) carries a n/a token window, uses the Other tokenizer and is served by Moonshotai. On Hoodgen it sits in the General tier of the model menu next to its siblings, so you can switch mid conversation without losing the thread.
03 · Release
Release and what changed from the previous version
Released4 September 2025
This is the only release of Kimi K2 0905 (exacto) on OpenRouter, released 4 September 2025. The provider has not published a knowledge cutoff, so treat training data as recent but unconfirmed for very new events.
07 · Use cases
What can you do with Kimi K2 0905 (exacto)?
Everyday writing
Drafts, rewrites, summaries and replies.
Research
Source material condensed with the key numbers kept.
Chat
General questions where latency and cost both matter.
Tooling inside Hoodgen
Writer, Humanizer, Coding and the rest of the tool suite.
09 · Pricing
Kimi K2 0905 (exacto) pricing
Official pricing
List price
$0.6 / 1M in
$2.5 / 1M out
- n/a context
- text input
Cheapest route
$0.6 / 1M in
$2.5 / 1M out
- 1 route on OpenRouter
- What Hoodgen routes to first
- Same model, lower bill
Market pricing, every route
| Provider | Tier | Input | Output | Cache read | Uptime 24h |
|---|---|---|---|---|---|
| Novita | standard | $0.6 | $2.5 | n/a | 100.0% |
API pricing and cost calculator
| Rate | Per call | Total | Credits |
|---|---|---|---|
| Cheapest route | $0.0158 | $7.88 | 7482 |
| List price | $0.0158 | $7.88 | 7482 |
10 · Developers
API and developer information
| Model ID | moonshotai/kimi-k2-0905:exacto |
| Endpoint | https://openrouter.ai/api/v1/chat/completions |
| Parameters | prompt and max_tokens |
| Streaming | Yes, server sent events |
| Modality string | text->text |
| Max prompt tokens | provider default |
| Max completion tokens | 98,304 |
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "moonshotai/kimi-k2-0905:exacto",
"messages": [{ "role": "user", "content": "Summarise this document." }],
"max_tokens": 1024
}'11 · Limitations
Model limitations
| Text only output | It cannot generate images, audio or video. Pair it with an image model on Hoodgen when you need visuals. |
| Output cap | 98,304 tokens per request. Long deliverables have to be chunked. |
| Benchmarks not published | Artificial Analysis does not publish an Intelligence Index for this release, so no benchmark score is claimed here. |
| Knowledge cutoff | The provider does not state a fixed cutoff for every release. Verify very recent events against search. |
12 · Comparison
Kimi K2 0905 (exacto) vs other Moonshotai models
| Model | Context | Input /1M | Output /1M | AA index | Released |
|---|---|---|---|---|---|
| Kimi K2 0905 (exacto) | n/a | $0.6 | $2.5 | n/a | 2026 |
| Kimi K2.7 Code | 262K | $0.6 | $3 | n/a | 2026 |
| Kimi K3 | 1.05M | $0.182 | $11.005 | n/a | 2026 |
13 · Privacy
Privacy and data policy
- On Hoodgen, prompts and attachments answer that request and stay in your conversation history so you can reopen it. They are not used to train models.
- Requests route through OpenRouter to Moonshotai and are covered by that provider's API terms.
- Do not paste secrets or personal data you would not send to any hosted model.
14 · FAQ
Kimi K2 0905 (exacto) questions, answered
Kimi K2 0905 (exacto) is a general model from Moonshotai, released 4 September 2025. Kimi K2 0905 is the September update of [Kimi K2 0711](moonshotai/kimi-k2).
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Start chatting with Kimi K2 0905 (exacto)
Free to try on Hoodgen AI, with a live credit estimate before every send. No API key, no setup.