K2 Think V2 Intelligence, Performance & Price Analysis
Model summary
Intelligence
Artificial Analysis Intelligence Index
Speed
Output tokens per second
Input Price
USD per 1M tokens
Output Price
USD per 1M tokens
Verbosity
Output tokens from Intelligence Index
Metrics are compared against models of the same class:
- Non-reasoning models → compared only with other non-reasoning models
- Reasoning models → compared across both reasoning and non-reasoning
- Open weights models → compared only with other open weights models of the same size class:
- Tiny: ≤4B parameters
- Small: 4B–40B parameters
- Medium: 40B–150B parameters
- Large: >150B parameters
- Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio:
- <$0.15 per 1M tokens
- $0.15–$1 per 1M tokens
- >$1 per 1M tokens
| Reasoning | Yes This page shows the reasoning version of this model. A non-reasoning variant may also exist. |
|---|---|
| Input modality | Supports: text |
| Output modality | Supports: text |
| Context window | 262k ~393 A4 pages of size 12 Arial font |
| Total parameters | 70B |
| License | Apache 2.0 |
| Model weights | Hugging Face |
K2 Think V2 is amongst the leading models in intelligence and well priced when comparing to other open weight models of similar size. The model supports text input, outputs text, and has a 262k tokens context window.
K2 Think V2 scores 24 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models (averaging 15). When evaluating the Intelligence Index, it generated 99M tokens, which is very verbose in comparison to the average of 6.7M.
Pricing for K2 Think V2 is $0.00 per 1M input tokens (competitively priced, average: $0.15) and $0.00 per 1M output tokens (competitively priced, average: $0.57). In total, it cost $0.00 to evaluate K2 Think V2 on the Intelligence Index.
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Openness
Artificial Analysis Openness Index: Results
Intelligence Index Comparisons
Intelligence vs. Price
Intelligence Index Token Use & Cost
Output Tokens Used to Run Artificial Analysis Intelligence Index
Cost to Run Artificial Analysis Intelligence Index
Context Window
Context Window
Pricing
Pricing: Input and Output Prices
Intelligence vs. Price (Log Scale)
Pricing Comparison of K2 Think V2 API Providers
Speed
Measured by Output Speed (tokens per second)
Output Speed
Output Speed vs. Price
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 Tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Frequently Asked Questions
Common questions about K2 Think V2
K2 Think V2 was released on December 15, 2025.
K2 Think V2 was created by MBZUAI Institute of Foundation Models.
K2 Think V2 scores 24 on the Artificial Analysis Intelligence Index, placing it well above average among other open weight models of similar size (median: 15).
When evaluated on the Intelligence Index, K2 Think V2 generated 99M output tokens, which is at the higher end compared to other open weight models of similar size (median: 6.7M).
Yes, K2 Think V2 is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer.
K2 Think V2 supports text input.
K2 Think V2 supports text output.
No, K2 Think V2 does not support image input. It can only process text.
No, K2 Think V2 is not multimodal. It only supports text input.
K2 Think V2 has a context window of 260k tokens. This determines how much text and conversation history the model can process in a single request.
Yes, K2 Think V2 is open weights. The model weights are publicly available and can be downloaded for self-hosting.
K2 Think V2 has 70 billion parameters.
K2 Think V2 is released under the Apache 2.0 license. This license allows commercial use. View license
K2 Think V2 achieves a score of 24 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.
K2 Think V2 is an open weights model that can be self-hosted. View providers
K2 Think V2 is an open weights model that can be downloaded and self-hosted. Compare providers