Comparisons

Claude Opus 4.8 vs Inkling

On provider list prices, Inkling costs $1.87 per million input tokens against $5 for Claude Opus 4.8: 2.7x apart. Output is $4.68 against $25 (5.3x). On Allocate both bill at list plus the 7% transaction fee.

Claude Opus 4.8 Inkling
LabAnthropicThinking Machines
AccessAPI onlyOpen weights
Context window200K tokens1M tokens
List price, input$5 / M tokens$1.87 / M tokens
List price, output$25 / M tokens$4.68 / M tokens
Cached inputn/a$0.374 / M tokens
LicenseProprietary APIApache 2.0
Fine-tunableNoYes

Specifications 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 $14,750 on Claude Opus 4.8 at list: a gap of $10,868, or 3.8x.

Inkling reads 1M tokens per request against 200K for Claude Opus 4.8, 5.0x the window. That decides which one can take whole documents without splitting them.

Inkling$1.87$4.68
Claude Opus 4.8$5$25
InputOutput

Choose Claude Opus 4.8 for

  • Hardest reasoning problems
  • High-stakes analysis
  • Escalation tier for agents
Claude Opus 4.8 details

Choose Inkling for

  • The lower list price ($1.87 in / $4.68 out per M tokens)
  • The longer context window (1M vs 200K tokens)
  • Open weights you can fine-tune and own
Inkling details

Common questions

Which is cheaper, Claude Opus 4.8 or Inkling?

Inkling, on this workload shape. At list prices it is $1.87/$4.68 per million tokens in and out against $5/$25 for Claude Opus 4.8. Billed on Allocate: $2.00/$5.01 against $5.35/$26.75, list plus 7%.

Which has the bigger context window?

Inkling: 1,000,000 tokens (1M) against 200,000 (200K) for Claude Opus 4.8.

Can I fine-tune Claude Opus 4.8 or Inkling?

Inkling publishes open weights (Apache 2.0) and can be fine-tuned on your own data. Claude Opus 4.8 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.