← Model list Claude Opus 5.5 Fast anthropic ·anthropic/claude-opus-5-5-fast ·GA ·Closed ·claude-opus series ·NEW
Copy ID + Add to compare Flagship Claude model for deep reasoning, coding, and long-horizon agents
Specs & pricing Input / output per 1M tokens Reference price · Venice AI $9.60 / $48.00
Blended $19.20 $0.48
Released / updated
2026-09-26 / 2026-09-28
Capabilities
✓ Reasoning ✓ Tool use ✓ Structured output Temperature ✓ Attachments
Available at 2 providers2 with public prices Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Reasoning control effort = low effort = medium effort = high effort = xhigh effort = max
Your usage cost 1 Vercel AI Gateway $2,688.00
2 Venice AI $3,225.60
The cheapest paid channel is the only channel.
Price historyone sample accumulated per data sync
$48.00 $0 2026-09-23 2026-09-29 2026-09-23 · Input list $8.00 2026-09-29 · Input list $9.60 2026-09-23 · Output list $40.00 2026-09-29 · Output list $48.00 2026-09-23 · Min blended $16.00 2026-09-29 · Min blended $16.00 Related models