tts-1-hd
OpenAIdevelopers.openai.com/api/docs/models/tts-1-hd
Text-to-speech model optimized for quality
Updated 7 h ago · first seen 11 Sept 2026
model_01M293V79GWH42XEVVT1RTE95P
Specification
- Openness
- proprietary
Source:OpenAI Platform docsT1observed 7 h agohigh
- API model id
- tts-1-hd
Source:OpenAI Platform docsT1observed 7 h agohigh
- Official page
Source:OpenAI Platform docsT1observed 7 h agohigh
Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →
Provenance
Attributed facts
4
Source tiers
T14
Freshest observation
7 h ago
Conflicts
None
Modalities
Modalities unavailable.
Capabilities
Tool calling
Unavailable
Structured output
Unavailable
Reasoning
Unavailable
Vision
Unavailable
Audio
Unavailable
Fine-tuning available
Unavailable
No capability flags have been observed from a source yet — we do not infer them.
No structured attributes yet.
No benchmark results recorded
Current prices
| Provider | Input / 1M | Output / 1M | Cached in | Batch in / out | Context | Observed | Source |
|---|---|---|---|---|---|---|---|
| OpenAI APItts-1-hd | $30 | — | — | — | — | 7 h ago | developers.openai.comT1 |
USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.
Available through 1
Price history
Input price · USD / 1M tokens
Output price · USD / 1M tokens
Not enough history
- OpenAI API
No hardware estimate available
No lineage recorded
Papers 0
No papers linked yet.
Repositories 0
No repositories linked yet.
As of
Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.
Claim history
Opennessopenness1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| proprietary | → current | current | OpenAI Platform docsT1 | high | deterministic |
API model idapi_model_id1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| tts-1-hd | → current | current | OpenAI Platform docsT1 | high | deterministic |
Official pageofficial_url1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| https://developers.openai.com/api/docs/models/tts-1-hd | → current | current | OpenAI Platform docsT1 | high | deterministic |
Descriptiondescription1
| Value | Valid from → to | Status | Source | Confidence | Extractor |
|---|---|---|---|---|---|
| Text-to-speech model optimized for quality | → current | current | OpenAI Platform docsT1 | high | deterministic |
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
| Source | Document | Type | Tier | Last observed | Snapshots |
|---|---|---|---|---|---|
| OpenAI Platform docs | developers.openai.com/api/docs/models.md | model_docs | T1· Official | 1 h ago | 1 |
| OpenAI Platform docs | developers.openai.com/api/docs/pricing.md | pricing | T1· Official | 1 h ago | 1 |
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.