Migrating from labs-leanstral-2603 to labs-leanstral-1-5
What changes when you move from labs-leanstral-2603 to labs-leanstral-1-5: prices, limits, features and parameters, read from each company's own pages.
- Status
- Retired
- Shutdown
- Jun 30, 2026
- Time left
- —
- Status
- Retired
- Shutdown
- Sep 30, 2026
- Time left
- —
labs-leanstral-1-5 is itself retired.
Prices
USD per 1M tokens, standard tier| Type | labs-leanstral-2603 | labs-leanstral-1-5 | Change |
|---|---|---|---|
| Input | $0.00first seen October 5, 2026 · source | $0.00first seen October 5, 2026 · source | — |
| Output | $0.00first seen October 5, 2026 · source | $0.00first seen October 5, 2026 · source | — |
At 1M input and 250K output tokens a month: $0.00 on labs-leanstral-2603, $0.00 on labs-leanstral-1-5 (—).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | labs-leanstral-2603 | labs-leanstral-1-5 | Change |
|---|---|---|---|
| Context window | 256,000 tokensin place when tracking began (October 6, 2026) · source | 256,000 tokensin place when tracking began (October 6, 2026) · source | 0% |
| Max output tokens | Not published | 128,000 tokensin place when tracking began (October 6, 2026) · source | — |
Features and parameters
Compare modelsSame on both
- Structured outputs: supported on both.labs-leanstral-2603: in place when tracking began (October 6, 2026) · source · labs-leanstral-1-5: in place when tracking began (October 6, 2026) · source
- Function calling: supported on both.labs-leanstral-2603: in place when tracking began (October 6, 2026) · source · labs-leanstral-1-5: in place when tracking began (October 6, 2026) · source
- Image input: supported on both.labs-leanstral-2603: in place when tracking began (October 6, 2026) · source · labs-leanstral-1-5: in place when tracking began (October 6, 2026) · source
Not published for labs-leanstral-2603: Prompt caching, Batch API, PDF input, Reasoning / thinking, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs, Max output tokens.
Not published for labs-leanstral-1-5: Prompt caching, Batch API, PDF input, Reasoning / thinking, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs.
Aliases
All aliasesNo aliases point at either model.
Checklist
- Change the model string from
labs-leanstral-2603tolabs-leanstral-1-5.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: labs-leanstral-2603, labs-leanstral-1-5.