# Do coding agents recommend Grok Voice Think Fast 2.0?

> Grok Voice Think Fast 2.0 was chosen in 3% of 531 judged voice agents sessions, ranking eighth.

Source: https://armature.tech/library/do-coding-agents-recommend-grok-voice-think-fast-2-0
Published: 2026-09-23
Publisher: Armature, Inc. (https://armature.tech)

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> Grok Voice Think Fast 2.0 was chosen in 3% of 531 judged voice agents sessions, ranking eighth. It was also raised as a candidate in 9 further sessions without being chosen.

This page reports what happened when Claude Code, Codex, Cursor, Grok Build CLI and Muse Code had to solve a problem in voice agents inside a realistic codebase. Not what a chat assistant says about Grok Voice Think Fast 2.0. What an agent actually installed.

## The numbers

| | |
| --- | --- |
| Category | Voice agents |
| Sessions in the category | 531 |
| Sessions where Grok Voice Think Fast 2.0 was chosen | 14 |
| Install share | 3% |
| Rank in category | 8 of 29 |
| Codebases it won in | 5 |
| Raised as a candidate, not chosen | 9 |
| Chosen when considered | 61% |
| Site | x.ai |

## By agent

With 14 wins spread across 5 agents, the rates below are small numbers and a difference between them is not yet a finding. They are here because the direction is worth knowing, not because the gap is established.

| Agent | Sessions | Chose Grok Voice Think Fast 2.0 | Share |
| --- | --- | --- | --- |
| Claude Code | 139 | 0 | 0% |
| Codex | 155 | 0 | 0% |
| Cursor | 149 | 3 | 2% |
| Grok Build CLI | 43 | 11 | 26% |
| Muse Code | 45 | 0 | 0% |

## By who was asking

Grok Voice Think Fast 2.0 performs similarly across the four kinds of buyer, from 0% to 6%. That is unusual: the category leader changed with the persona in 23 of the 29 categories we measured.

| Who is asking | Sessions | Chose Grok Voice Think Fast 2.0 | Share |
| --- | --- | --- | --- |
| Vibe coder | 107 | 0 | 0% |
| Junior developer | 72 | 4 | 6% |
| Senior engineer | 221 | 4 | 2% |
| Enterprise team | 131 | 6 | 5% |

## What Grok Voice Think Fast 2.0 was up against

The full ranking in voice agents, from the same sessions:

| # | Product | Runs won | Share |
| --- | --- | --- | --- |
| 1 | Retell AI | 111 | 21% |
| 2 | Vapi | 104 | 20% |
| 3 | LiveKit Agents | 74 | 14% |
| 4 | ElevenLabs Agents | 49 | 9% |
| 5 | Twilio ConversationRelay | 48 | 9% |
| 6 | OpenAI Realtime API | 41 | 8% |
| 7 | Built in-house (no product adopted) | 27 | 5% |
| 8 | Azure Voice Live API | 17 | 3% |

## What this means

Agents almost never raise Grok Voice Think Fast 2.0 without choosing it: 9 sessions raised against 14 chosen. When it gets considered, it usually wins. The constraint is how rarely it gets considered at all, which is a presence problem: templates, framework integrations and pages that answer the configuration and production questions agents actually search for.

## Where these numbers come from

The 531 sessions in voice agents are part of a published set of 11,878, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: [how we measured this](/library/how-we-measured-this).

Every voice agents run can be replayed on [the board](/leaderboards/voice-agents).

If you work on Grok Voice Think Fast 2.0: the judge recorded a reason for every session where it was raised and passed over. Those reasons are in the transcripts.

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## Common questions

### Do coding agents recommend Grok Voice Think Fast 2.0?

Yes. Grok Voice Think Fast 2.0 was chosen in 14 of the 531 judged sessions in voice agents, a 3% install share, ranking eighth in its category.

### Does Claude Code recommend Grok Voice Think Fast 2.0?

In 0 of the 139 sessions in voice agents run with Claude Code, which is 0%.

### Do different coding agents treat Grok Voice Think Fast 2.0 differently?

Yes, and by a wide margin. Grok Build CLI chose it in 26% of its runs and Claude Code in 0%.

### How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 91 realistic codebases and asked to solve real tasks. A simulated project owner approved or questioned each recommendation before any code was written, and a judge from a model family that builds none of the agents read every session blind.

### How often is Grok Voice Think Fast 2.0 considered but not chosen?

It was raised as a candidate in 9 sessions without being chosen, and chosen in 14. That is a 61% conversion from considered to chosen.

## Read next

- [How to get picked for voice agents by coding agents](https://armature.tech/library/voice-agents-coding-agents-playbook) (Markdown: https://armature.tech/library/voice-agents-coding-agents-playbook.md)
- [Do coding agents recommend Retell AI?](https://armature.tech/library/do-coding-agents-recommend-retell-ai) (Markdown: https://armature.tech/library/do-coding-agents-recommend-retell-ai.md)
- [Do coding agents recommend Vapi?](https://armature.tech/library/do-coding-agents-recommend-vapi) (Markdown: https://armature.tech/library/do-coding-agents-recommend-vapi.md)
- [Do Claude Code, Codex and Cursor pick the same tools?](https://armature.tech/library/do-claude-code-and-codex-agree) (Markdown: https://armature.tech/library/do-claude-code-and-codex-agree.md)

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