Evidence
Primary and independent public records used by the maintained answer.
Evidence admitted to the current answer
Every record is public, dated where possible, and labeled by the role it plays.
| Source | Claim | Relation | Accessed |
|---|---|---|---|
| OpenAI model catalog | Documents currently exposed GPT model identities and API surfaces. | context | 2026-08-06 |
| OpenAI status history | Documents availability incidents separately from capability claims. | limits | 2026-08-06 |
| Claude model overview | Documents Claude model and access-surface distinctions. | context | 2026-08-06 |
| Claude status | Records repeated availability incidents without establishing longitudinal capability decline. | limits | 2026-08-06 |
| Grok 4.5 release | Establishes the announced Grok model and product availability. | context | 2026-08-06 |
| Kimi K3 technical report | Establishes the dated technical record for Kimi K3. | context | 2026-08-06 |
| Artificial Analysis Opus 5 comparison | Provides a dated cross-model snapshot, not a controlled degradation trend. | limits | 2026-08-06 |
| Vellum open model comparison | Provides selected open-model results with mixed provenance. | limits | 2026-08-06 |