# OpenRouter API: transcription schemas and new model filtering parameters

> OpenRouter expanded its API surface: audio transcription gained structured segment/word/timestamp schemas and new response fields, and the /models and /datasets/rankings-daily endpoints gained new filtering parameters.

| | |
|---|---|
| **Tool** | openrouter |
| **Version** | — |
| **Kind** | announcement |
| **Published** | 2026-07-07 |
| **Observed** | 2026-08-21 |
| **Significance** | 3/5 |
| **Breaking** | no |
| **Categories** | api-change, feature |

## What changed


- POST /audio/transcriptions: new schemas STTSegment, STTWord, STTTimestampGranularity; STTResponse adds duration, language, segments, task, words; STTRequest adds response_format and timestamp_granularities
- GET /models: new filter parameters — min/max age_days, agentic_index, coding_index, intelligence_index, output_price, tool_success_rate
- GET /datasets/rankings-daily: new parameters category, context_bucket, language_type, modality, period
- POST /images: now returns 413
- ChatFunctionTool: new union variant added; FusionServerToolConfig and ImageGenerationResponse descriptions/fields updated


## Sources

- [blog_rss](https://openrouter.ai/docs/changelog#july-7-2026) — retrieved 2026-08-21


## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

---
Canonical: https://changelogs.info/openrouter/openrouter-api-transcription-schemas-and-new-model-filtering-parameters
Entity: https://changelogs.info/openrouter
Event ID: `evt_2026-07-07_openrouter_july-7-2026`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.