New & deprecated LLM modelsMay 2026
In May 2026, 1 new model was released and 11 models were deprecated or scheduled to sunset. Newest release: Claude Opus 4.8.
New models — May 2026
1 model with a public release date in May 2026, joined to live list prices and benchmark scores.
| Model | Provider | Input / 1M | Output / 1M | Best score | Released |
|---|---|---|---|---|---|
| Claude Opus 4.8 | Anthropic | $5.00 | $25.00 | 91.0% | 28 May 2026 |
Deprecated & sunsetting — May 2026
11 models with an upstream retirement or sunset date in May 2026. Plan migrations before the date to avoid broken calls.
| Model | Provider | Input / 1M | Output / 1M | Best score | Sunset date |
|---|---|---|---|---|---|
| claude-3-opus-20240229 | Anthropic | $15.00 | $75.00 | 47.2% | Retired1 May 2026 |
| claude-opus-4-20250514 | Anthropic | $15.00 | $75.00 | 70.7% | Retired14 May 2026 |
| claude-sonnet-4-20250514 | Anthropic | $3.00 | $15.00 | 66.7% | Retired14 May 2026 |
| grok-3 | xAI | $3.00 | $15.00 | 53.3% | Retired15 May 2026 |
| grok-4-0709 | xAI | $3.00 | $15.00 | 87.0% | Retired15 May 2026 |
| grok-4-1-fast-non-reasoning | xAI | $0.20 | $0.50 | — | Retired15 May 2026 |
| grok-4-1-fast-reasoning | xAI | $0.20 | $0.50 | — | Retired15 May 2026 |
| grok-4-fast-non-reasoning | xAI | $0.20 | $0.50 | 87.0% | Retired15 May 2026 |
| grok-4-fast-reasoning | xAI | $0.20 | $0.50 | 87.0% | Retired15 May 2026 |
| grok-code-fast-1 | xAI | $0.20 | $1.50 | — | Retired15 May 2026 |
| grok-code-fast-1-0825 | xAI | $0.20 | $1.50 | — | Retired15 May 2026 |
Prices from the LLM API Pricing Index, synced daily. Release & benchmark data via Epoch AI (CC BY); deprecation dates from provider metadata. New models are those with a public release date this month that appear in the tracked price catalogue.
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