Public price
A pricing page exists but we could not find an actual number on it.
Open sourceOpik alternatives
Opik has a free tier. We found 5.5 out of 10 of the buying evidence we check for. 13 of the 22 other products below publish more.
This is a comparison of what each company publishes on its own site. It covers price, free access, measured results, documented limits, product updates, and testing methods. It is evidence for a shortlist, not a rating of product quality. The products below share a broad category and are not necessarily direct substitutes. Use Comparima for direct competitors.
LLM observability and evalsHow this market looks from public information.
14 of 23for published buying evidence
70%publish a usable price
78%can be tried first
30%publish measured results
65%state their limits
What we could verify
Every finding links to the page it came from. Open the source before relying on it.
Try before paying
A buyer can verify the claim themselves without paying ("free tier").
Open sourceMeasured customer result
This scan did not verify a measured customer result from a first-party source.
Open sourceDocumented limits
A possible mention appeared on a comparison or unrelated page, so we did not count it.
Open sourceTesting method
Describes how it was tested ("Benchmarking on"; includes dataset).
Open sourceRecent product updates
This scan did not verify a dated first-party changelog or release history.
Open sourceAsk before you buy
These questions come from the information we could not verify on the public site.
- What measurable result has a customer like us achieved?
- Where does it fail, and what still needs human review?
- How often is the product updated, and where are releases documented?
Compare the field
Showing 12 of 22 that match your filters.
Opikcomet.com
5.5/10website evidencefree tier
Measured results not verified. Product limits not verified. Recent updates not verified.
- Pricing is published
- You can try it without paying
- Shows how it was tested
- Measured results not verified
- Product limits not verified
- Recent updates not verified
Galileogalileo.ai
10/10website evidence$100 /month
Publishes more buying evidence than Opik. Publishes a measured result, unlike Opik.
- Pricing is published
- You can try it without paying
- Publishes a measured result
- Says what it cannot do
- Shows how it was tested
- Actively maintained
DeepEvalconfident-ai.com
8.5/10website evidencefree tier
Publishes more buying evidence than Opik. Publishes a measured result, unlike Opik.
- Pricing is published
- You can try it without paying
- Publishes a measured result
- Shows how it was tested
- Actively maintained
- Product limits not verified
Langfuselangfuse.com
8/10website evidence$29 / month
Publishes more buying evidence than Opik. Says what it cannot do, unlike Opik.
- Pricing is published
- You can try it without paying
- Says what it cannot do
- Shows how it was tested
- Actively maintained
- Measured results not verified
Portkeyportkey.ai
8.5/10website evidence$49/month
Publishes more buying evidence than Opik. Publishes a measured result, unlike Opik.
- Pricing is published
- You can try it without paying
- Publishes a measured result
- Says what it cannot do
- Actively maintained
- Testing method not verified
Promptfoopromptfoo.dev
9/10website evidencefree tier
Publishes more buying evidence than Opik. Publishes a measured result, unlike Opik.
- Pricing is published
- You can try it without paying
- Publishes a measured result
- Says what it cannot do
- Shows how it was tested
- Recent updates not verified
Agentaagenta.ai
6.5/10website evidence$29 /month
Publishes about as much buying evidence as Opik. Says what it cannot do, unlike Opik.
- Pricing is published
- You can try it without paying
- Says what it cannot do
- Actively maintained
- Measured results not verified
- Testing method not verified
Braintrustbraintrust.dev
6.5/10website evidencepricing published
Publishes about as much buying evidence as Opik. Says what it cannot do, unlike Opik.
- Pricing is published
- You can try it without paying
- Says what it cannot do
- Actively maintained
- Measured results not verified
- Testing method not verified
Freeplayfreeplay.ai
7.5/10website evidencepricing published
Publishes more buying evidence than Opik. Publishes a measured result, unlike Opik.
- Pricing is published
- You can try it without paying
- Publishes a measured result
- Says what it cannot do
- Testing method not verified
- Recent updates not verified
Heliconehelicone.ai
6.5/10website evidence$79 per month
Publishes about as much buying evidence as Opik. Says what it cannot do, unlike Opik.
- Pricing is published
- You can try it without paying
- Says what it cannot do
- Actively maintained
- Measured results not verified
- Testing method not verified
Humanloophumanloop.com
6.5/10website evidencepricing not verified
Publishes about as much buying evidence as Opik. Publishes a measured result, unlike Opik.
- You can try it without paying
- Publishes a measured result
- Says what it cannot do
- Actively maintained
- Pricing not verified
- Testing method not verified
Lunarylunary.ai
6.5/10website evidence$20 / user
Publishes about as much buying evidence as Opik. Says what it cannot do, unlike Opik.
- Pricing is published
- You can try it without paying
- Says what it cannot do
- Actively maintained
- Measured results not verified
- Testing method not verified
Patronuspatronus.ai
7.5/10website evidence$25/ Month
Publishes more buying evidence than Opik. Publishes a measured result, unlike Opik.
- Pricing is published
- You can try it without paying
- Publishes a measured result
- Says what it cannot do
- Testing method not verified
- Recent updates not verified
Read in August 2026 from pages anyone can open. This is what each company puts on its own site, which is not the same as how good the product is. Something excellent can still tell you very little. Spotted a mistake? Tell us and we will read it again.
Compare a product we have not covered