AfterQuery vs LMArena
Which Evaluation AI tool is better in 2026?
AfterQuery
Expert reasoning datasets and benchmarks for frontier AI
LMArena
Crowdsourced leaderboard for ranking AI models
Side-by-side
LMArena is the more established option (raised $250M); pricing is comparable on both sides.
| Metric | AfterQuery | LMArena |
|---|---|---|
| Taglinei | Expert reasoning datasets and benchmarks for frontier AI | Crowdsourced leaderboard for ranking AI models |
| Foundedi | 2025 | 2025 |
| HQi | San Francisco, US | Berkeley, United States |
| Employeesi | 11-50🏆 | — |
| Neuron scorei | 55 | 73🏆 |
| Total fundingi | $30M | $250M🏆 |
| Latest roundi | Series A | Series A · Jan 2026 |
| Valuationi | — | $1.7B🏆 |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✓ | ✓ |
| Free triali | ✓ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for AfterQuery and LMArena.
| Capability | AfterQuery | LMArena |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of AfterQuery
- Strong in AI Evaluation
🔵 Strengths of LMArena
- Has raised more capital ($250M vs $30M)
- Higher Neuron score (73 vs 55)
Which should you choose?
Choose LMArena if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Evaluation tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose LMArena if you want the most established option — it has raised $250M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
AfterQuery vs LMArena — which is better?
It depends on your priority. AfterQuery is the leaner option; LMArena has broader feature depth. See the side-by-side table above.
Is AfterQuery cheaper than LMArena?
No — LMArena's cheapest paid plan is Free, while AfterQuery's is Free.
Do AfterQuery and LMArena offer free plans?
AfterQuery: Yes, has a free plan. LMArena: Yes, has a free plan.
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