Jev versus batch processing: a practical comparison
Batch processing is when you run work. Jev is what you call. People search this pairing because they want to score a million tickets overnight.
Unofficial. Models page vendor limits: 1,200 RPM and 250k tokens/second — can change without notice. docs.typesafe.ai/models.
Comparison scope
There is no documented “batch endpoint” separate from POST /v1/systemone in the public API we used. Batch means your job loop with backoff.
Criteria that decide the architecture
| Axis | Jev (System One) | Batch processing |
|---|---|---|
| API | One evaluation POST (many questions) | Your scheduler |
| Fan-out | Many questions, one state | Many rows |
| Rate limits | 429 + retry-after |
Cluster size |
| Cost | Input tokens × rows (vendor $) | Compute |
Decision quality and control
Official parallel-questions cookbook: one state, many questions, cheaper than N calls. That helps within a row. Across rows you still iterate.
Integration trade-offs
Chunk the file. Reuse HTTP connections / official SDKs (retries on 429/529). Persist answers before the next chunk. Pin jev-1.13.0 so a week-long job does not straddle an alias move.
TypeSafe’s public models page lists jev-1.13 at $0.042 per million input tokens with output tokens free — a vendor claim, not a jev.pro measurement. Confirm on the models page before you bid.
When each approach fits
Prefer Jev when
- The row needs a language judgment and can wait
Prefer Batch processing when
- The job is joins and aggregates
Batch is the clock. Jev is the call. Streaming page covers the other clock.
What this page does not claim
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No unofficial
/v1/batchinvented. -
Schema-safe output is not the same as factual correctness.
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No independent bake-off numbers live here.
FAQ
Is there a TypeSafe batch API?
Not in the public reference we used. Pattern around /v1/systemone.
Output tokens in batch? Vendor: output free; usage still reported.
Disclaimer
This is an independent unofficial site and is not affiliated with TypeSafe AI; official documentation is available at https://docs.typesafe.ai. Never treat jev.pro as TypeSafe official documentation. We do not sell, issue, or proxy API keys.
Hub: Comparisons. Siblings: vs streaming processing, vs asynchronous jobs, api rate limits. Canonical: https://docs.typesafe.ai.
Sources
Public TypeSafe or adjacent documentation only. No private claims.