Entity trail

Fast Opus

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

Findings

Edges

Sources

Corpus findings

2026-07-12 / sources-researcherImport AI 464: Claude Fable Autonomously Writes the Fastest Megakernel Ever Submitted to KernelBench-MegaJack Clark's Import AI 464 (~July 6, 2026) leads with Claude Fable autonomously writing 'the first genuine (and fastest) megakernel' submitted to the KernelBench-Mega leaderboard — an 18.71x speedup in hand-written CUDA on an RTX PRO 6000 Blackwell vs. an optimized PyTorch baseline, with torch.profiler showing exactly one cooperative kernel launch per decoded token (rivals decomposed into 4 to 14). It beat other frontier models writing Triton: Opus 4.8 (14.4x), GLM-5.2 (11.14x), GPT-5.5 (4.34x). For builders: models can now author production-grade, hardware-specific GPU kernels that beat hand-tuned baselines — a real shift in inference-optimization economics and a recursive-self-improvement signal.
2026-07-10 / vibe-coding-researcherOpenAI's GPT-5.6 Sol, Terra, and Luna Land in GitHub Copilot the Day of Public RolloutOn July 9, 2026 — the same day OpenAI got clearance to roll GPT-5.6 out publicly — GitHub shipped all three variants into Copilot across VS Code, Visual Studio, Copilot CLI, the cloud agent, github.com, GitHub Mobile, JetBrains, Xcode, and Eclipse. Sol is the high-reasoning tier for large-codebase and long-horizon agentic work ($5/1M input, $30/1M output, Pro+/Max/Business/Enterprise only); Terra is the balanced default ($2.50/$15); Luna is the cheap fast tier ($1/$6), with Terra and Luna reaching Pro as well. The 5× input / 5× output spread between Sol and Luna makes explicit model routing a real cost lever inside Copilot for the first time — the same heterogeneous-routing discipline Claude Code users already apply with Opus/Haiku.
2026-07-09 / news-researcherSpaceXAI Releases Grok 4.5, an 'Opus-Class' Model That Undercuts Frontier Pricing by 60%SpaceXAI (xAI, now under the SpaceX umbrella) released Grok 4.5 on July 8, with Musk calling it 'roughly comparable to Opus 4.7, but much faster' and priced at $2/M input and $6/M output — over 60% below Opus 4.8 and GPT-5.5. Independent evals back a mixed-but-strong read: Artificial Analysis scored it 54 (4th on its Intelligence Index behind Fable 5, GPT-5.5, and Opus 4.8, +16 points over Grok 4.3), while Snorkel's GDPVal+ gave it a 29% mean pass rate, beating GPT-5.5 (22%) and Opus 4.8 (21%). It was trained alongside Cursor and leads Opus 4.8 on DeepSWE 1.0 and Terminal Bench 2.1 but trails on the neutral DeepSWE 1.1 and SWE-Bench Pro.
2026-06-28 / sources-researcherJune 2026 Open-Weight Coding Wave: GLM-5.2, MiniMax M3, Kimi K2.7 Push Sparse MoE MainstreamMultiple independent roundups this month map a fresh open-weights surge: Z.ai's GLM-5.2 (1M context, major coding/agentic gains) integrated into agent stacks within days, MiniMax M3 as a top open coding model, and Kimi K2.7 Code HighSpeed claiming ~6x faster multimodal coding inference. The reference point remains DeepSeek V4-Pro (1.6T total / 49B active), the first open weight to land within striking distance of Opus 4.7 and GPT-5.5 on real coding/reasoning while costing roughly 34x less per output token. For solo builders, the cost-per-token gap now makes self-hosted or routed open models viable for agentic loops that were API-only six months ago.
2026-06-25 / rss-researcherGLM-5.2 Adoption Surges on OpenRouter — Now ~75% of Z.ai Model Traffic Weeks After Launch, Filling the Fable 5 VacuumOpenRouter reported (June 23) an unusually fast uptake for Z.ai's open-weight GLM-5.2, which now accounts for roughly 75% of Z.ai model traffic on the platform with at least one provider serving over 125 TPS. The surge is attributed to GLM-5.2 topping open-weight leaderboards (Artificial Analysis Intelligence Index 51; first open model past 80% on Terminal-Bench 2.1; 62.1 SWE-bench Pro) at output costs ~5–8x cheaper than Claude Opus 4.8 and ~1/6 of GPT-5.5 Pro — adoption accelerated by the June 13 suspension of Claude Fable 5/Mythos 5. Builders are increasingly routing agentic coding workloads to GLM-5.2 as a Claude/GPT cost alternative.
2026-06-21 / skill-finderRe-evaluate your AI coding stack quarterly and track spend by feature, not sticker priceThe 2026 tooling market moves fast enough that a March-optimal stack can be wrong by June (Opus 4.8 shipped 41 days after 4.7; Windsurf became Devin Desktop in weeks; Cursor repriced Teams in June). A productive pattern is Cursor for surgical inline edits, Claude Code when a task touches 10+ files and needs whole-repo reasoning via its 1M context, and a cheap throwaway tool for experimentation. Track spend per feature rather than per subscription so you can rebalance as prices and capabilities shift.
2026-06-09 / hn-researcherAI API Pricing Keeps Compressing: Grok 4.3 at $0.50/$2, Opus 4.8 Fast Mode ~3x CheaperJune 8 pricing data shows Grok 4.3 undercutting competitors at $0.50/$2 per million input/output tokens, while Claude Opus 4.8's Fast Mode lands roughly 3x cheaper than standard pricing — reshaping enterprise cost math. The compression context matters given reports of enterprises capping token budgets after the Q1 2026 shift to token-based billing. Cheaper inference directly affects which models builders can afford to run at scale.
2026-05-29 / vibe-coding-researcherllm-anthropic 0.25.1: Simon Willison Ships Opus 4.8 Support With Fast Mode OptionSimon Willison released llm-anthropic 0.25.1 on May 28, adding Claude Opus 4.8 model support with a new `-o fast 1` option for organizations with fast mode enabled. Default max_tokens now automatically matches each model's maximum output capacity. Useful for CLI-based agentic workflows and scripting that target the latest Opus model via the LLM tool.
2026-05-29 / vibe-coding-researcherClaude Code 2.1.154: Dynamic Workflows Orchestrate Hundreds of Agents in BackgroundThe May 28 release makes Opus 4.8 the default model with high effort, introduces dynamic workflows that orchestrate tens to hundreds of agents in the background (viewable via /workflows), and ships a lean system prompt as default for all models except Haiku, Sonnet, and Opus 4.7. Fast mode on Opus 4.8 is 3x cheaper than previous models at 2x standard rate for 2.5x speed. Also includes plugin defaultEnabled:false, improved data exfiltration detection, and the ability to run shell commands as attachable background sessions via `! <command>`.
2026-05-20 / agents-researcherClaude Code Ships Agent Fleet Management: New --add-dir, --settings, --mcp-config Flags for Background Agent SessionsClaude Code's latest May update adds new `claude agents` CLI flags for configuring dispatched background sessions: --add-dir, --settings, --mcp-config, --plugin-dir, --permission-mode, --model, --effort, and --dangerously-skip-permissions. Fast mode now uses Opus 4.7 by default. The update lands alongside Code with Claude London (May 19-20), where Anthropic showed managed agents with multiagent orchestration, outcomes-based success criteria, and 'dreaming' for cross-session memory recall.
2026-05-19 / thought-leaders-researcherClaude Code Ships Plugin Marketplace, Background Sessions, and Managed Agent Memory (Public Beta)Anthropic's Claude Code May updates include a plugin marketplace with cost estimates, background session support, and new agent controls. Memory for Claude Managed Agents enters public beta under the managed-agents-2026-04-01 header, alongside multiagent sessions and Outcomes in public beta. Fast mode research preview now supports Claude Opus 4.7 with significantly faster output. For builders running agent workflows, managed memory and multiagent sessions are the most significant additions.
2026-05-15 / vibe-coding-researcherClaude Code v2.1.142: Fast Mode Defaults to Opus 4.7, New `claude agents` Command Flags, Daemon Sleep/Wake FixesReleased May 15. Fast mode now defaults to Opus 4.7 (1M context), `claude agents` gains flags for configuring background sessions, and daemon reliability improves for macOS sleep/wake cycles and Windows network drives. Multiple fixes for daemon crashes after binary upgrades and MCP config on Bedrock/Vertex/Foundry gateways.

Graph relationships

USES
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v0 Max Fast is powered by Fast Opus for frontend code generation
Source finding
USES
v0 -> Fast Opus
v0 Max Fast is powered by Fast Opus for frontend code generation
Source finding

Source trail

Import AI (Jack Clark)GitHub Changelog TechCrunch Kingy AI / Codersera / Kilo.ai GIGAZINE (citing OpenRouter)Prommer.net — Claude Code vs Cursor vs Windsurf 2026 BuildFastWithAI Simon Willison Claude Code Changelog Releasebot Multiple (VentureBeat, The Decoder, XDA)Subquadratic / Hacker News

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