DeepEval
DeepEval is a Python LLM eval harness with an inspect TUI: you score a test case (or an agent trace) in pytest, then open deepeval inspect on the span tree.
OUR TAKE
Pick DeepEval for Python teams who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud. $0 is the library, not judge tokens.
Good fit
Python teams who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud.
Poor fit
DeepEval (library) · Confident AI Starter $200/mo · Team $2/mo
USD, before tax · Checked 2026-10-27 · confident-ai.com/pricing
OUR TAKE
Pick DeepEval for Python teams who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud. $0 is the library, not judge tokens. G-Eval still hits your model bill.
Good fit
Python teams who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud.
Poor fit
DeepEval (library) · Confident AI Starter $200/mo · Team $2/mo
USD, before tax · Checked 2026-10-27 · confident-ai.com/pricing
What it costs
USD, before tax · Checked 2026-10-27 · confident-ai.com/pricing
DeepEval (library)
Apache 2.0. License fee . Local pytest + inspect TUI. You pay judge-model tokens
$0
Confident AI Free
forever. Prompt versioning and a hosted start. Limits sit on the Free tile
$0
Confident AI Starter
Everything in Free plus higher retention / API. Tracing from /GB-month after included GB
$200/mo
Team
000/month. Enterprise custom
Lowest paid
$2/mo
Checked 2026-10-27·confident-ai.com/pricing
Before you pay
Good fit
Python teams who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud.
Watch out
$0 is the library, not judge tokens. G-Eval still hits your model bill.
Instead, try
Confident AI if the hosted sister when you want the cloud desk, not local inspect; Promptfoo if YAML eval + red team when you do not want pytest
Compare DeepEval with
Limits, in full
- 01
$0 is the library, not judge tokens. G-Eval still hits your model bill.
- 02
Starter is $200/org/month. Quote that, not a seat we invent.
- 03
A pytest/TUI harness, not Phoenix’s OTel warehouse. For that see Phoenix.
If DeepEval isn't it
Why: the hosted sister when you want the cloud desk, not local inspect.
Free· paid from$2/mo
Free is 5 test runs a week + 1 GB-monthChecked 2026-10-22·confident-ai.com/pricing
vs DeepEval
Why: YAML eval + red team when you do not want pytest.
Free· open source,MIT
Community red team is 10k probes/monthChecked 2026-10-27·promptfoo.dev/pricing
vs DeepEval
Why: OTel traces when you want Phoenix $0 self-host.
Free· paid from$50/mo
ELv2, not ApacheChecked 2026-10-27·arize.com/pricing
vs DeepEvalLimits & alternatives3 limits · Confident AI, Promptfoo, Phoenix instead
Limits, in full
- 01
$0 is the library, not judge tokens. G-Eval still hits your model bill.
- 02
Starter is $200/org/month. Quote that, not a seat we invent.
- 03
A pytest/TUI harness, not Phoenix’s OTel warehouse. For that see Phoenix.
If DeepEval isn't it
Why: the hosted sister when you want the cloud desk, not local inspect.
Free· paid from$2/mo
Free is 5 test runs a week + 1 GB-monthChecked 2026-10-22·confident-ai.com/pricing
vs DeepEvalWhy: YAML eval + red team when you do not want pytest.
Free· open source,MIT
Community red team is 10k probes/monthChecked 2026-10-27·promptfoo.dev/pricing
vs DeepEvalWhy: OTel traces when you want Phoenix $0 self-host.
Free· paid from$50/mo
ELv2, not ApacheChecked 2026-10-27·arize.com/pricing
vs DeepEval