Bonsai 4B vs Ternary Bonsai 2 27B
At a Glance
| Compare |  Bonsai 4BPrismML | Ternary Bonsai 2 27BPrismML |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $0.075Openrouter ↗ · Sep 23, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $0.50Openrouter ↗ · Sep 23, 2026 |
| Context windowMaximum documented tokens | 33K | 262K |
| Model facts checked | Sep 18, 2026View model evidence → | Sep 18, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Bonsai 4B | Ternary Bonsai 2 27B |
|---|---|---|
| Developer | PrismML | PrismML |
| Family | Bonsai 4b | Bonsai 2 |
| Model | Bonsai 4B | Ternary Bonsai 2 27B |
| Version | Bonsai 4B | Ternary Bonsai 2 27B |
| Lifecycle | active | active |
| Released | 2026-03-29 | 2026-09-17 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
| Context window | 33K | 262K |
| Total parameters | 4B | 27.4B |
| Active parameters | Unknown | Unknown |
| License | apache-2.0 | apache-2.0 |
| Open weights | Yes | Yes |
| API available | No | Yes |
| Self-hostable | Yes | Yes |
| Provider access | Unknown | Openrouter (Standard) |
| Capabilities | chat, generation | chat, generation, reasoning, tools, vision |
| Base model | Unknown | Qwen3.8 27B |
| Effective bit width | 1 bit per weight | 1.76 bits per weight |
| Language model size | Unknown | 5.93 GB |
| Weight size | 0.57 GB | Unknown |
| Weight format | Binary Q1_0 | Ternary g128 with FP16 group scales |
Bonsai 4B Capabilities
Ternary Bonsai 2 27B Capabilities
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Primary Evidence
Sources and Freshness
Questions
Bonsai 4B vs Ternary Bonsai 2 27B FAQs
Is Bonsai 4B or Ternary Bonsai 2 27B better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Bonsai 4B and Ternary Bonsai 2 27B, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Bonsai 4B or Ternary Bonsai 2 27B?+
Only Ternary Bonsai 2 27B has a directly sourced input price: $0.075 per million tokens. Only Ternary Bonsai 2 27B has a directly sourced output price: $0.50 per million tokens.
Which has a larger context window, Bonsai 4B or Ternary Bonsai 2 27B?+
Ternary Bonsai 2 27B has the larger sourced context window. Bonsai 4B supports 33K and Ternary Bonsai 2 27B supports 262K.
Which performs better in benchmarks, Bonsai 4B or Ternary Bonsai 2 27B?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Bonsai 4B or Ternary Bonsai 2 27B be self-hosted?+
Both models have the same recorded self-hosting status: supported. Bonsai 4B is open weight; Ternary Bonsai 2 27B is open weight.
Can Bonsai 4B and Ternary Bonsai 2 27B understand images?+
Bonsai 4B is not documented with image input; Ternary Bonsai 2 27B is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Bonsai 4B or Ternary Bonsai 2 27B?+
Neither has a larger sourced maximum output. Bonsai 4B is — and Ternary Bonsai 2 27B is —.
Do Bonsai 4B and Ternary Bonsai 2 27B support reasoning and tool use?+
Bonsai 4B: none of these features are definitively sourced. Ternary Bonsai 2 27B: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Bonsai 4B or Ternary Bonsai 2 27B?+
Bonsai 4B has 0 sourced provider routes; Ternary Bonsai 2 27B has 1, so Ternary Bonsai 2 27B has broader tracked availability.
Which offers better value, Bonsai 4B or Ternary Bonsai 2 27B?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.