AllocateClaude Sonnet 5 vs Inkling
On provider list prices, Inkling costs $1.87 per million input tokens against $3 for Claude Sonnet 5: 1.6x apart. Output is $4.68 against $15 (3.2x). On Allocate both bill at list plus the 7% transaction fee.
Claude Sonnet 5
InklingSpecifications and provider list prices from the Allocate catalog, checked 2026-07-08. Billed price is list plus the 7% transaction fee.
What the numbers say
Take 1,000,000 requests a month at 1,200 input and 350 output tokens each. That workload costs $3,882 a month on Inkling and $8,850 on Claude Sonnet 5 at list: a gap of $4,968, or 2.3x.
Choose Claude Sonnet 5 for
- Judgment calls with policy context
- Customer-facing writing
- Review and escalation flows
Choose Inkling for
- The lower list price ($1.87 in / $4.68 out per M tokens)
- Open weights you can fine-tune and own
- Fine-tuning under a permissive license (Apache 2.0)
Common questions
Which is cheaper, Claude Sonnet 5 or Inkling?
Inkling, on this workload shape. At list prices it is $1.87/$4.68 per million tokens in and out against $3/$15 for Claude Sonnet 5. Billed on Allocate: $2.00/$5.01 against $3.21/$16.05, list plus 7%.
Which has the bigger context window?
They match: both read 1,000,000 tokens (1M) per request.
Can I fine-tune Claude Sonnet 5 or Inkling?
Inkling publishes open weights (Apache 2.0) and can be fine-tuned on your own data. Claude Sonnet 5 is a closed model served over API; its weights are not available.
Related comparisons
Run the numbers on your workload
Or don’t choose. On Allocate a route name is the contract: point yours at one model today, swap to the other tomorrow, and compare them on your live traffic with per-token metering.