Inception Mercury vs Retool
Inception Mercury and Retool are both developer tools tools aimed at developers and enterprise. Both have a free plan.
Diffusion LLM API built for very fast, low-latency text generation
Internal tools built fast
| Pricing | Freemium | Freemium · $12 |
| Starting price | Not published | $12/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Developers, Enterprise | Developers, Enterprise |
| Platforms | web | web |
| Country | — | US · 2017 |
| Rating | — | — |
Choose Inception Mercury if
Developers building latency-sensitive agents, voice bots or coding tools who want a fast, cheap text model behind an OpenAI-compatible API.
- Very high output speed suits real-time and agent loops
- Low list price of $0.20 input and $0.70 output per million tokens
- 100 million free tokens with no card to start
Look elsewhere if: Teams that need multimodal models, open weights or the widest ecosystem of hosted tools (Gemini, DeepSeek, Claude).
Choose Retool if
Engineering and operations teams at startups and enterprises who need internal tools fast.
- Fastest way to build internal tools
- Rich component library and connectors
- Free for 5 users
Look elsewhere if: Customer-facing apps or non-technical builders without SQL/JS basics.
Inception Mercury vs Retool pricing
Inception Mercury
- Free$0100M free tokens for new API keys, all models, no card
- Mercury 3$0.20 in / $0.70 out/1M tokensLaunch price 50% off: $0.10 in, $0.35 out; cached input $0.02
- Mercury Voice$0.40 in / $1.50 out/1M tokensLaunch price 50% off: $0.20 in, $0.75 out; enterprise access via sales
- Mercury Decide$0.04 in/1M tokensLaunch price 50% off: $0.02 in; output tokens free
- EnterpriseCustomCustom rate limits, SLA, volume pricing, dedicated capacity
Retool
- Free$0Up to 5 users, 500 workflow runs/mo
- Team$12/builder/mo$10 billed annually; internal users $7 ($5); 5,000 runs/mo
- Business$65/builder/mo$50 billed annually; internal users $18 ($15); audit logs
- EnterpriseCustomSSO, SCIM, Git, up to 6 instances
Inception Mercury · Key features
- Mercury 3 diffusion LLM with a 1M-token context window
- Measured 1,068 tokens per second output on NVIDIA GPUs
- Adjustable reasoning effort to trade speed against thoroughness
- Tool calling with parallel and chained calls for agents
- Mercury Voice with under 170 ms time-to-first-token for voice agents
- Mercury Decide classification model with calibrated probabilities
Cons
- Quality claims against rivals come without published benchmark scores
- Text-focused lineup with no image or video generation
- Launch discount has no stated end date, so costs may double
Retool · Key features
- 100+ components with drag-and-drop layout
- Native connectors to databases and APIs; SQL and JS everywhere
- Retool Workflows for automation and cron
- Retool Mobile for native internal apps
- AI components and Retool Agents
- Permissions, audit logs, source control and self-hosting (Enterprise)
Cons
- Per-user pricing adds up for large orgs
- Complex apps hit the limits of the model
- JavaScript knowledge needed for real logic
Inception Mercury vs Retool: FAQ
Do Inception Mercury and Retool have a free plan?
Yes, both Inception Mercury and Retool have a free plan; paid plans add more usage and features.