Guides and pricing notes
How to connect your tools to QuickSilver Pro, which models to pick, and what they cost. Prices in every post come from the live pricing table.
Every Claude model now costs 25% of Anthropic's list price
Since October 19, 2026, Claude Opus 5.5, Sonnet 5.5, Haiku 5.5 and Fable 5.1 cost 75% less on QuickSilver Pro than at Anthropic's list price, cache reads and writes included. Nothing to change in your code.
Claude Opus 5.5 vs Sonnet 5.5 for coding agents: is Opus worth it?
We ran Claude Code on six coding tasks with hidden tests, twice per model. Sonnet 5.5 and Opus 5.5 passed every test; Opus took 1.6 times as long and cost 2.5 times as much per task.
DeepSeek V4.1 Flash vs Claude Haiku 5.5: a 17-task benchmark of the two cheapest tiers
We ran DeepSeek V4.1 Flash and Claude Haiku 5.5 on the same 17 coding, extraction and reasoning tasks, three times each, and measured pass rate, latency and cost per 1,000 tasks.
Image generation API compared: 11 models, the same 3 prompts, real outputs
We ran GPT Image 2.5, GPT Image 2, Seedream, Qwen Image, FLUX, SDXL Turbo and Bria FIBO on the same three prompts through one API and compared text rendering, composition, latency and price per image.
Open models vs Claude: Kimi K3, GLM 5.3 and DeepSeek V4 Pro against Sonnet 5.5 and Opus 5.5
The same 17 coding, extraction and reasoning tasks, three runs each, on three open models and two Claude models — pass rate, latency and cost per 1,000 tasks, measured on 2026-10-20.
Call QuickSilver Pro from the OpenAI SDK, LangChain and the Vercel AI SDK
Working examples for the OpenAI Python and Node SDKs, LangChain's ChatOpenAI and the Vercel AI SDK against QuickSilver Pro — plain calls, streaming and tool calling, with the package versions we ran them on.
Use QuickSilver Pro in OpenCode and Crush
Configure the OpenCode and Crush terminal coding agents to use QuickSilver Pro, run Claude Sonnet 5.5 at $0.50 / $2.50 per million tokens or DeepSeek V4.1 Flash for less, and see what a small bug fix cost.
Which model should you use on QuickSilver Pro? A guide by job and budget
Which model to pick for coding agents, extraction, chat and cheap high-volume work, based on our own measured pass rates, latency and cost per task — and where our data runs out.
Claude API pricing in 2026: Anthropic's rates vs QuickSilver Pro
Per-token prices for Claude Opus 5.5, Fable 5.1, Sonnet 5.5 and Haiku 5.5 — Anthropic's list price next to what the same model costs through QuickSilver Pro, and how to switch.
Claude Code with QuickSilver Pro: setup, models and cost
Point Claude Code at QuickSilver Pro with a few settings, map its opus / sonnet / haiku aliases to the models you want, and pay 75% less than Anthropic's list price for Sonnet 5.5.