Hacker ApprovedDepartments

gpt-oss-120b on Cerebras

Shares rank 11 of 12 LLM inference APIs by recommenders

People recommend it for very fast responses on Cerebras hardware, which suits agent workflows with many tool calls. The most common caveat is unreliable tool calling.

People recommend it for very fast responses on Cerebras hardware, which suits agent workflows with many tool calls. The most common caveat is unreliable tool calling.

6 people gave an opinion

recommend it
5
criticize it
1
approval share
83%
Each figure is one person. RecommendsCriticizes

Recommended in 5 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: recommended
  6. April 2026: not recommended
  7. May 2026: recommended
  8. June 2026: not recommended
  9. July 2026: recommended
  10. August 2026: not recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 5 people recommend itNeeds 10 or more, not met.
  • 5 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 5 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Very fast responses

    “This is really impressive. At these speeds, it's possible to run agents with multi-tool turns within seconds.”

    Comment from 8 Nov 2025 in “GPT-OSS 120B Runs at 3000 tokens/sec on Cerebras”

    “switch to something like gpt-oss-120B on cerebras and watch it fly. Total cost will be less than $5”

    Comment from 28 Jul 2026 in “Using an open model feels surprisingly good”

    “I'm happy with the performance of this setup!”

    Comment from 5 Mar 2026 in “Nvidia PersonaPlex 7B on Apple Silicon: Full-Duplex Speech-to-Speech in Swift”

What people warn about

Each mark is one comment

  • Unreliable tool calling

    “gpt-oss-120b is absolutely unusable over Cerebras because it fails to call tools half the time”

    Comment from 19 Aug 2026 in “Cerebras CS4”

    “It is broken, screws up tool calls most of the time”

    Comment from 24 Sep 2026 in “Mercury 2.5 LLM hits 770 tokens per second”

Other LLM inference APIs people recommend

The four most recommended other LLM inference APIs, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

gpt-oss-120b on Cerebras compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Cerebras Inference1095168%13—Approved
Groq API582372%12—Approved
Tinfoil211068%10—Approved
Darkbloom193933%1——
gpt-oss-120b on CerebrasThis page5183%5——
See all 12 LLM inference APIs, ranked

What people said

All 8 comments that mention it, newest first. Each links to the original comment.

“it would get stuck in a thinking block and then start endlessly saying things like”

CriticizesComment from 24 Sep 2026 in “Mercury 2.5 LLM hits 770 tokens per second”

“It is broken, screws up tool calls most of the time”

CriticizesComment from 24 Sep 2026 in “Mercury 2.5 LLM hits 770 tokens per second”

“gpt-oss-120b is absolutely unusable over Cerebras because it fails to call tools half the time”

CriticizesComment from 19 Aug 2026 in “Cerebras CS4”

“switch to something like gpt-oss-120B on cerebras and watch it fly. Total cost will be less than $5”

RecommendsComment from 28 Jul 2026 in “Using an open model feels surprisingly good”

“He primarily uses gpt 120b on cerebras and glm-5.1 for heavy thinking work.”

RecommendsComment from 27 May 2026 in “I think Anthropic and OpenAI have found product-market fit”

“I'm happy with the performance of this setup!”

RecommendsComment from 5 Mar 2026 in “Nvidia PersonaPlex 7B on Apple Silicon: Full-Duplex Speech-to-Speech in Swift”

“could be a good fit with careful prompting”

RecommendsComment from 9 Dec 2025 in “Show HN: Gemini Pro 3 imagines the HN front page 10 years from now”

“This is really impressive. At these speeds, it's possible to run agents with multi-tool turns within seconds.”

RecommendsComment from 8 Nov 2025 in “GPT-OSS 120B Runs at 3000 tokens/sec on Cerebras”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.