Fish Audio S2.1 Pro
Data as of September 21, 2026 · How the score is built
Fish Audio S2.1 Pro will be repriced, updated or retired. Get each notice with its source and date. Follow model changes
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Voice benchmark evidence
Audio Realism Benchmark is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.
Spec sheet
Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.
- API model ID
- s2.1-pro-freeFish Audio model documentation
- Context window
- N/A
- Maximum output
- Not sourced yet
- Knowledge cutoff
- Not sourced yet
- Input modalities
- Not sourced yet
- Output modalities
- Not sourced yet
- Parameters
- Not disclosed by the provider
- Availability
- Fish serves S2.1 Pro through its hosted API as `s2.1-pro-free`, its published no-cost developer SKU.
- Cloud regions
- Not tracked yet
- Lifecycle
- Tracked
- API capabilities
- Tool calling, structured outputs, and batch support are not tracked yet
- Prompt caching
- Not documented in the pricing recordFish Audio model documentation
- Self-host
- Weights are not published
- Rate limits
- Not tracked yet
Lineage
The sequence follows explicit supersedes links. A successor's displayed score stays at least 0.1 points above its predecessor; raw benchmark rows do not move. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.
Release date not sourced · you are here
Fish Audio S2.1 ProNot publicly ranked · Price not listed
Base entry
How to read this profile
The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.
We track Fish Audio S2.1 Pro, but no weighted text-model benchmark result is published on the site yet. This page shows the metadata and separate protocol evidence we can verify now; a BenchLM score will appear only if compatible public evaluations land.
Fish Audio S2.1 Pro is a proprietary model with a N/A context window. No explicit reasoning mode is documented in this profile.
Fish serves S2.1 Pro through its hosted API as `s2.1-pro-free`, its published no-cost developer SKU.
Fish Audio S2.1 Pro is a display-only text-to-speech model. Its Audio Realism result remains separate from BenchLM’s weighted text-model ranking.
The profile has no source-displayable benchmark row yet.
Questions
How does Fish Audio S2.1 Pro perform overall in AI benchmarks?
Fish Audio S2.1 Pro does not have any source-displayable benchmark rows yet, so this profile does not assign a public score or rank. Documented specifications remain visible, while score-led charts and claims stay unavailable until a published evaluation can be attached to the exact model.
Does Fish Audio S2.1 Pro have full benchmark coverage on BenchLM?
No. Fish Audio S2.1 Pro currently has 0 source-displayable rows across 447 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.
What is the context window size of Fish Audio S2.1 Pro?
Fish Audio S2.1 Pro has a reported context window of N/A in the exact-model catalog record. The value stays visible, but the profile marks its source link as unavailable instead of presenting it as directly documented. Maximum output length remains separate because providers often publish a different limit.
Compare Fish Audio S2.1 Pro with every tracked model496 comparisons
Last updated September 21, 2026. Runtime fields remain blank until a sourced snapshot exists.
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