Which free OpenCode models are fast, reliable workers?

[u/petburiraja]

Free stops being useful if the worker stalls or leaves broken code.

I tested 10 OpenCode free models on Oct 8, 2026.

Q&A: probability and executed code; agentic: fix two failing tests, verified by pytest and unchanged test-file hash, 420 s timeout.

Rank	Model	Score	Q&A	Agentic fix	Seconds
1	mimo-v2.6-flash-free	100	2/2	pass	129
2	muse-spark-1.3-contributor-free	99	2/2	pass	132
3	space-bunny-free	95	2/2	pass	167
4	longcat-2.5-preview-free	92	2/2	pass	214
5	ling-3.1-flash-free	91	2/2	pass	220
6	nemotron-3-ultra-free	70	probability wrong	pass	257
7	nemotron-3.5-lightning-free	20	probability wrong	timeout, 2 failing	422
8	exo-free	0	failed/timeout	not run	n/a
8	fledge-alpha-free	0	failed/timeout	not run	n/a
8	ling-3.0-flash-fin-free	0	failed/timeout	not run	n/a

Score (0-100): floor(20 per correct Q&A item + 40 per passing fix + 20 × 129/seconds for passing fixes only).

Try MiMo or Muse first; Space Bunny is the next pick.

• Keep tests as the oracle.
• Avoid secrets/private data: free models may log prompts.
• Re-check availability and rate limits.

Single repo runs cannot establish reliability; seconds are repo runtime including startup and parallel contention.

Share a free model's fix result and runtime.

[u/Nenad1979]

If only mimo didn't spend 10 fucking minutes thinking about how to delete a file

[u/plmtr → u/Nenad1979]

Same here, have had Mimo as Designer in my OMO-Slim setup and takes a long time, but results have been accurate

[u/Mr_Lucas2000]

Mimo 2.6 flash quite smart, context limiting it but works for a few hours if it needs to better than muse in my opinion

[u/AmbitiousAthlete7324 → u/Mr_Lucas2000]

it have arte limit.

[u/Interesting-Movie452]

what about big piclkle

[u/YoRt3m → u/Interesting-Movie452]

Isn't Big Pickle a different model from time to time?

[u/FacuA0 → u/YoRt3m]

Big Pickle is whatever other model opencode big picks at the moment.

[u/plmtr]

And the new one to try today: exo-free

[u/sudoer777_]

I tried LongCat 2.5 Preview yesterday and the connection was extremely unreliable and slow, but when it did work it wasn't terrible for a free model.

[u/adrnptcl]

Mimo and Space Bunny do wonders for me

[u/trowawayatwork]

big pickle?

[u/Available_Mood_1212]

Big pickle works the best for me.

BTW I also use mimov2.6 flash and is quite good... for me

[u/Traditional_Pie_8262]

the unchanged test hash is such a smart guard against the agent editing its own oracle. do u separate provider queue time from model time? quick disclosure, this is a client related note about raven.

[u/DEAD1nsane]

Muse Spark 1.3 Free

is my all time favorite

[u/Competitive-Yak-8255]

Nice

[u/amethyst_mine]

deepseek 4.1 flash?

[u/TruBustedElbow → u/amethyst_mine]

its not free anymore

[u/amethyst_mine → u/TruBustedElbow]

didn't read free mb