AllocateClaude Opus 4.8 vs Inkling FP4
On provider list prices, Inkling FP4 costs $1 per million input tokens against $5 for Claude Opus 4.8: 5.0x apart. Output is $4.05 against $25 (6.2x).
Claude Opus 4.8
Inkling FP4Specifications and provider list prices from the Allocate catalog, checked 2026-07-21.
What the numbers say
Take 1,000,000 requests a month at 1,200 input and 350 output tokens each. That workload costs $2,618 a month on Inkling FP4 and $14,750 on Claude Opus 4.8 at list: a gap of $12,133, or 5.6x.
Inkling FP4 reads 512K tokens per request against 200K for Claude Opus 4.8, 2.6x the window. That decides which one can take whole documents without splitting them.
Choose Claude Opus 4.8 for
- Hardest reasoning problems
- High-stakes analysis
- Escalation tier for agents
Choose Inkling FP4 for
- The lower list price ($1 in / $4.05 out per M tokens)
- The longer context window (512K vs 200K tokens)
- Open weights you can fine-tune and own
Common questions
Which is cheaper, Claude Opus 4.8 or Inkling FP4?
Inkling FP4, on this workload shape. At list prices it is $1/$4.05 per million tokens in and out against $5/$25 for Claude Opus 4.8. Billed on Allocate: $1.07/$4.33 against $5.35/$26.75.
Which has the bigger context window?
Inkling FP4: 524,288 tokens (512K) against 200,000 (200K) for Claude Opus 4.8.
Can I fine-tune Claude Opus 4.8 or Inkling FP4?
Inkling FP4 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.