Aleph Alpha · Released Oct 3, 2026Kolibri 1
Aleph Alpha's German and English mixture-of-experts reasoning model (78B total, 3.46B active) for chat, RAG and agents.
- Capability
- —No ECI score yet
- Input
- $0.164per 1M tokens
- Output
- $0.574per 1M tokens
- Context
- 1.05Mtokens
What it costs
- Input
- $0.164per million tokens
- Output
- $0.574per million tokens
- Blended (3:1)
- $0.266cheaper than 71% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $0.614 |
| Team assistant25M input + 5M output tokens | $6.96 |
| Production app250M input + 50M output tokens | $69.58 |
Median of 4 paid API providers on models.dev.
Independent benchmarks
Epoch AI has not published a Capabilities Index score for Kolibri 1 yet.
The details
- Lab
- Aleph Alpha
- Released
- Oct 3, 2026
- Knowledge cutoff
- Jun 18, 2026
- Context window
- 1,048,576 tokens
- Inputs
- Text
- Output
- Text
- Reasoning
- Always on
- Tool calling
- Yes
- Structured output
- No
- Weights
- Open weights · Apache-2.0
- Availability
- 4 API providerslisted on models.dev
About Kolibri 1
How much does Kolibri 1 cost?
Kolibri 1 costs $0.164 input / $0.574 output per million tokens (median across 4 API providers). At a 3:1 input-to-output mix that is $0.266 per million tokens, cheaper than 71% of the 445 priced models we track.
What is the context window of Kolibri 1?
Kolibri 1 accepts up to 1,048,576 tokens per request.
How good is Kolibri 1?
Epoch AI has not published a Capabilities Index score for Kolibri 1 yet.
Is Kolibri 1 open source?
Yes. Aleph Alpha publishes the weights under the Apache-2.0 licence, so it can be downloaded and self-hosted.
What inputs does Kolibri 1 support?
Kolibri 1 accepts text and replies in text. It is a reasoning model, supports tool calling.
When was Kolibri 1 released?
Aleph Alpha released Kolibri 1 on Oct 3, 2026. Its training data runs to Jun 18, 2026.
What are the best alternatives to Kolibri 1?
The closest current models from other labs on capability, price and release date are MiniMax-M3.1-Flash (MiniMax, $0.15 / $0.60), Nemotron 3.5 Super 120B A12B (NVIDIA, $0.20 / $0.50), Qwen3.8 Flash Next (Alibaba (Qwen), $0.20 / $0.50) and Mercury 2.5 (Inception, $0.20 / $0.75).