Here's a comprehensive review of **Grok 4.5** and the **OpenCode Go plan**: --- ## 🚀 Grok 4.5 — Full Review ### Specs & Pricing | Detail | Value | |---|---| | **Launch Date** | July 8, 2026 (devs) / July 9 (public) | | **Architecture** | 1.5T parameter V9 MoE (Mixture of Experts) | | **Context Window** | **500K tokens** — a *step down* from Grok 4.3's 1M | | **Speed** | ~80 tokens/second | | **API Pricing** | **$2/M input, $6/M output** (cached input: $0.50/M — 75% discount) | | **AI Index Rank** | #4 of 168 models (score 54) | ### Benchmarks (vs. Key Competitors) | Benchmark | Grok 4.5 | Claude Opus 4.8 | Fable 5 | GPT-5.5 | Sonnet 5 | |---|---|---|---|---|---| | **SWE-bench Pro** | 64.7% | 69.2% ✅ | 80.4% | 58.6% | 63.2% | | **DeepSWE 1.1 (neutral)** | 53% | 59% ✅ | 70% | 67% | — | | **Terminal-Bench 2.1** | **83.3%** ✅ | 78.9% | 84.3% | 83.4% | 80.4% | | **SWE Marathon (pass@1)** | **29.0%** ✅ | 26.0% | 24.0% | — | — | ### ⚡ The Token Efficiency Story (Key Advantage) Grok 4.5 resolves SWE tasks using **~15,954 output tokens** vs. Opus 4.8's **67,020** — a **4.2x fewer tokens** advantage. This means the *effective cost per completed task* is roughly equivalent to Opus despite lower absolute scores, making it excellent for high-volume agentic coding. ### ⚠️ The 500K Context Caveat This is a **meaningful step backward** from Grok 4.3's 1M context. Grok 4.5 is fine for individual files but insufficient for large-codebase analysis. If you need full-repo context, Claude Sonnet 5 (1M) or GPT-5.6 (1.05M) are better options. ### Verdict Musk's claim of "Opus-class" holds up against **Opus 4.7** (not 4.8). Grok 4.5 is the **best intelligence-per-dollar coding model** available in July 2026 — ideal for high-volume agentic coding where cost-per-task matters more than absolute benchmark scores. --- ## 🎟️ OpenCode Go Plan — Full Review ### What It Is A **$5 first month / $10/month** subscription giving access to **15 curated open-source coding models** via a single API key. It works with *any agent* (not just OpenCode), with OpenAI and Anthropic-compatible endpoints. ### Models Included | Model | Strengths | |---|---| | **Grok 4.5** | Fast, token-efficient agentic coding | | **GLM-5.2 / 5.1** | 1M context, reasoning, long-horizon autonomy | | **Kimi K3 / K2.7 Code / K2.6** | Agentic coding, agent swarm, multi-agent coordination | | **DeepSeek V4 Pro / V4 Flash** | Competitive programming / budget workhorse | | **Qwen3.7 Max / Plus / 3.6 Plus** | Premium large-context / mid-tier default | | **MiMo-V2.5 Pro / V2.5** | Long-horizon sessions / high-volume budget | | **MiniMax M3 / M2.7** | General coding | ### Usage Limits (Dollar-Based) | Window | Limit | |---|---| | Per 5 hours | $12 of usage | | Per week | $30 of usage | | Per month | **$60 of usage** (6x your $10 fee) | **Example request counts:** Grok 4.5 → ~120 requests/5hrs | DeepSeek V4 Flash → ~31,650 requests/5hrs ### Key Pros ✅ **Cheapest multi-model plan** — $10/month for $60 of curated model access ✅ **Rock-solid stability** — zero reported downtime ✅ **Works everywhere** — one API key for any agent (OpenAI + Anthropic format) ✅ **Zero-retention data policy** ✅ **Global hosting** — US, EU, and Singapore servers ✅ **Referral bonus** — $5 extra usage credit per referral ### Key Cons ❌ **Chinese models only** — No Claude, GPT, or Gemini ❌ **Three-layer cap system** — can feel restrictive with reasoning-heavy models ❌ **Dollar-based usage** — harder to estimate than per-token pricing ### The Backstory Born from Anthropic's January 2026 block on third-party Claude credential usage. OpenCode pivoted hard, and Go is their most compelling product — described by the team as a **growth play, not a profit center** (they roughly break even). ### Tony's Verdict (Tony Reviews Things): **4.5 / 5** — "The cheapest multi-model AI coding subscription in 2026" --- ## 🔗 The Bottom Line **Grok 4.5** is a fast, cost-efficient coding model that excels at agentic tasks and token efficiency. Its 500K context is a limitation for large codebases, but at $2/$6 per million tokens, it's the best value in frontier coding. **OpenCode Go** is the ideal delivery vehicle for Grok 4.5 and 14 other curated open models, giving you **$60/month of usage for just $10**. If you're doing high-volume coding with agentic tools and want to avoid vendor lock-in, this is arguably the best deal in AI coding right now.