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Prism ML: PrismML: Ternary Bonsai 2 27B
Bonsai 2 27B is a 27B-parameter reasoning model from PrismML derived from Qwen3.8-27B. It supports coding, mathematics, tool calling, and image understanding with a 262K-token context window. Ternary compression shrinks...
Specifications
| Provider | Prism ML |
| Model ID | prism-ml/ternary-bonsai-2-27b |
| Context window | 262K tokens (262,144) |
| Modalities | text + image → text |
| Tokenizer | Qwen |
| Router sources | OpenRouter |
| Released | 2026-09-18 |
| Tracked since | 2026-11-14 |
| Popularity | Not in the ranked set |
| Reasoning | On by default |
Pricing (per million tokens)
| Variant | Source | API ID | Input | Output | Context |
|---|---|---|---|---|---|
| standard | OpenRouter | prism-ml/ternary-bonsai-2-27b | $0.075 | $0.5 | 262K |
Recorded price history
| Date | Input / 1M | Output / 1M | Context |
|---|---|---|---|
| 2026-11-14 | $0.075 | $0.5 | 262K |
Capabilities
Vision (image input)Agentic tool useStructured outputsReasoning mode256K+ context windowControllable reasoning
Supported parameters
frequency_penalty, include_reasoning, logprobs, max_tokens, presence_penalty, reasoning, reasoning_effort, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_logprobs, top_p