Comparison · under IB-CODE-2026.2
GitHub Copilot vs Grok Build
| GitHub Copilot | Grok Build | |
|---|---|---|
| Vendor | GitHub / Microsoft | xAI |
| Pricing | Individual $10/mo (moving to usage-based billing June 1 2026); Business $19/user/mo | SuperHeavy intro $99/mo for first 6 months (then $299/mo); API at $0.20 / $1.50 per Mtok in/out |
| Default model | Switchable per prompt — GPT-5.5, Claude Sonnet 4.6, Gemini 2.5 Pro | Grok 3.5 (Grok Build proprietary fine-tune); 256K context; 70.8% SWE-bench Verified |
| CLI surface | ✓ | ✓ |
| Eval status | queued | deferred |
Comparison pending — neither side evaluated yet
Both GitHub Copilot and Grok Build are currently unevaluated under IB-CODE-2026.2. This page will update as evaluations land.
Want this comparison sooner? Vendors can commission an evaluation to bump their tool up the queue (with full editorial independence on the verdict). Readers can email hello@indiebench.dev to vote for which comparison ships next.
About each tool
GitHub Copilot
GitHub Copilot has the highest absolute adoption among developers using AI at work (29%, Pragmatic Engineer Feb 2026 survey). The Coding Agent feature (GA September 2025) is the autonomous issue-to-PR mode evaluable under IB-CODE-2026.2 — distinct from the inline-autocomplete experience that gets th…
Grok Build
Grok Build launched May 14 2026 in early beta — xAI's entry in the agentic coding CLI category. The novel feature is multi-agent arena mode: up to 8 concurrent sub-agents working on parallel branches with a coordinator selecting the best result. Pricing is the steepest in this list for individual us…