Grok Speech (STT + TTS APIs)
No free tier
- Speech to Text (batch)$0.10/per hour
- Speech to Text (streaming)$0.20/per hour
- Text to Speech$4.20/per 1M characters
Our pickGrok Speech (STT + TTS APIs)

Augment Code Intent
Tier-list head-to-head. Grok Speech (STT + TTS APIs) takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | A-tier |
| Overall score | 8.1 / 10win | 8.0 / 10 |
| Free tier | No | No |
| Starting price | $0.10 | Included in Auggie subscription |
| Best for | Developers building voice agents, real-time transcription tools, accessibility features, or high-volume TTS… | Engineering teams already using Augment Code's Auggie or running mixed Claude-Code + Codex workflows who wa… |
| Last reviewed | 2026-04-18 | 2026-04-21 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
No free tier
No free tier
The decision
Use-case anchors and category strengths, side by side.
Developers building voice agents, real-time transcription tools, accessibility features, or high-volume TTS workloads where the cost per hour of audio actually matters at scale. Strong fit for phone-call and meeting transcription use cases where xAI's published WER advantage (5.0% on phone-call entities vs. ElevenLabs 12.0%) compounds quickly.
Visit Grok Speech (STT + TTS APIs)Engineering teams already using Augment Code's Auggie or running mixed Claude-Code + Codex workflows who want higher-level orchestration than writing LangGraph graphs from scratch. Also teams that want git-worktree-isolated parallel agent work with a verifier in the loop.
Visit Augment Code IntentBottom line
Grok Speech (STT + TTS APIs) (A-tier, 8.1/10) and Augment Code Intent (A-tier, 8.0/10) are within margin-of-error of each other on overall score. There's no decisive winner -- the right pick comes down to how you'll actually use the tool, not which scored higher in the abstract. We rate them on the same rubric (ease of use, output quality, value, features), and on this pair the rubric is calling it a draw.
Neither tool offers a free tier. Grok Speech (STT + TTS APIs) starts at $0.10, Augment Code Intent at Included in Auggie subscription. Plan to budget for whichever you pick. The cheap tier usually caps out faster than buyers expect, so look at what the entry plan actually includes -- both vendors have raised list prices in 2026 and the limits are where most of the cost surprise lives.
By use case: pick Grok Speech (STT + TTS APIs) when developers building voice agents, real-time transcription tools, accessibility features, or high-volume tts workloads where the cost per hour of audio actually matters at scale. Pick Augment Code Intent when engineering teams already using augment code's auggie or running mixed claude-code + codex workflows who want higher-level orchestration than writing langgraph graphs from scratch. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Grok Speech (STT + TTS APIs)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Augment Code Intent's lane, the score gap matters less than the fit.
Bottom line: this pair is a coin flip on raw scores. Choose by use-case fit, free-tier availability, and which one you can actually try without committing. Re-evaluate in 60-90 days -- both vendors are shipping fast in 2026.
Keep digging
Full Grok Speech (STT + TTS APIs) review
Tier A · 8.1/10
Full Augment Code Intent review
Tier A · 8.0/10
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Built from our daily AI-tool sweep, last touched April 21, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.