Inworld Realtime TTS-2 released
Inworld · Model release
Source confirmed
Data as of September 30, 2026 · How the score is built
CurrentProprietaryNon-Reasoning
Inworld Realtime TTS-2
Decision readingInworld Realtime TTS-2 is tracked, but not publicly ranked yet. Published speech or voice results from Audio Realism Benchmark appear below. They do not produce a weighted text-model score.
Released Aug 31, 2026 — see all recent releases
Inworld Realtime TTS-2 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.
Owner rank
#26 of 27
Elo-style rating
796
BT uncertainty
Not published
Win rate
18.9%
Battles
143
Avg. generation
2.84s
Provider API ID
inworld-tts-2
27 wins · 116 losses · owner snapshot 2026-09-28
Lineage
The sequence follows explicit supersedes links. Each score is estimated for that model; a relative can inform a sparse estimate but never sets a floor, so a newer release can score below an earlier one. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.
Base entry
Radar
Full release historyInworld Realtime TTS-2 release history
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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
- inworld-tts-2Inworld 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
- Generally available since August 31, 2026 as inworld-tts-2 on the Inworld API and Realtime API (research preview from May 5), with 100+ languages, natural-language voice direction, multi-turn audio awareness, and instant voice cloning. TTS-1.5 Max and Mini are deprecated and rerouted to the newer models.
- Cloud regions
- Not tracked yet
- Lifecycle
- Current
- API capabilities
- Tool calling, structured outputs, and batch support are not tracked yet
- Prompt caching
- Not documented in the pricing recordInworld model documentation
- Self-host
- Weights are not published
- Rate limits
- Not tracked yet
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 Inworld Realtime TTS-2, 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.
Inworld Realtime TTS-2 is a proprietary model with a N/A context window. No explicit reasoning mode is documented in this profile.
Generally available since August 31, 2026 as inworld-tts-2 on the Inworld API and Realtime API (research preview from May 5), with 100+ languages, natural-language voice direction, multi-turn audio awareness, and instant voice cloning. TTS-1.5 Max and Mini are deprecated and rerouted to the newer models.
Inworld Realtime TTS-2 is a display-only conversational text-to-speech model that succeeds TTS-1.5 Max. Voice results remain separate from BenchLM’s weighted text-model ranking.
Speech or voice evidence appears above; text-model benchmark coverage remains empty.
Last updated September 30, 2026. Runtime fields remain blank until a sourced snapshot exists.
Questions
How does Inworld Realtime TTS-2 perform overall in AI benchmarks?
Inworld Realtime TTS-2 has published speech or voice results in Audio Realism Benchmark. Those results remain separate from the weighted text-model ranking, so this profile does not assign a BenchLM score or overall rank. Use the linked evaluation's metric and run conditions to compare speech systems.
Does Inworld Realtime TTS-2 have full benchmark coverage on BenchLM?
No. Inworld Realtime TTS-2's speech or voice results appear in Audio Realism Benchmark, but it has no published text-model benchmark rows. The voice evaluation does not fill the text-model coverage slots or produce an overall rank. Missing text coverage is not treated as a zero score.
What is the context window size of Inworld Realtime TTS-2?
Inworld Realtime TTS-2 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.