Seed 1.8 vs Bonsai 4B

At a Glance

Compare
Seed 1.8ByteDance Seed
Bonsai 4BPrismML
Pricing and Limits
Context windowMaximum documented tokensNot reported33K
Model facts checkedSep 3, 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

All benchmark results →
No Protocol-Matched Benchmark Yet.Results appear here only when both models share the same benchmark version, metric, evaluation protocol, and evidence class.

Side-by-Side Facts

FieldSeed 1.8Bonsai 4B
DeveloperByteDance SeedPrismML
FamilySeed 1 8Bonsai 4b
ModelSeed 1.8Bonsai 4B
VersionSeed 1.8Bonsai 4B
Lifecycleactiveactive
ReleasedUnknown2026-03-29
Knowledge cutoffUnknownUnknown
Input modalitiesText, ImageText
Output modalitiesTextText
Context windowUnknown33K
Total parametersUnknown4B
Active parametersUnknownUnknown
LicenseUnknownapache-2.0
Open weightsNoYes
API availableYesNo
Self-hostableNoYes
Provider accessUnknownUnknown
Capabilitieschat, generation, reasoning, toolschat, generation
Effective bit widthUnknown1 bit per weight
Weight sizeUnknown0.57 GB
Weight formatUnknownBinary Q1_0

Seed 1.8 Capabilities

chatgenerationreasoningtools
Serving providers0
Canonical IDbytedance-seed/seed-1.8

Bonsai 4B Capabilities

chatgeneration
Serving providers0
Canonical IDprism-ml/Bonsai-4B

Primary Evidence

Sources and Freshness

Questions

Seed 1.8 vs Bonsai 4B FAQs

Is Seed 1.8 or Bonsai 4B better for coding?+

This comparison does not currently contain a protocol-matched coding benchmark for both Seed 1.8 and Bonsai 4B, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Which is cheaper, Seed 1.8 or Bonsai 4B?+

Neither model has a directly sourced input price in this comparison. Neither model has a directly sourced output price in this comparison.

Which has a larger context window, Seed 1.8 or Bonsai 4B?+

Neither model has a larger sourced context window in this comparison. Seed 1.8 is — and Bonsai 4B is 33K.

Which performs better in benchmarks, Seed 1.8 or Bonsai 4B?+

There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.

Can Seed 1.8 or Bonsai 4B be self-hosted?+

Bonsai 4B is the only model in this pair currently marked as self-hostable. Seed 1.8 is not marked open weight; Bonsai 4B is open weight.

Can Seed 1.8 and Bonsai 4B understand images?+

Seed 1.8 is documented with image input; Bonsai 4B is not documented with image input. This reflects supported input modalities, not vision quality.

Which can generate longer answers, Seed 1.8 or Bonsai 4B?+

Neither has a larger sourced maximum output. Seed 1.8 is — and Bonsai 4B is —.

Do Seed 1.8 and Bonsai 4B support reasoning and tool use?+

Seed 1.8: reasoning, tool calling, and image input. Bonsai 4B: none of these features are definitively sourced. Feature support does not establish relative quality.

Which is available from more inference providers, Seed 1.8 or Bonsai 4B?+

Seed 1.8 has 0 sourced provider routes; Bonsai 4B has 0, a tie.

Which offers better value, Seed 1.8 or Bonsai 4B?+

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.

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