Gemma 3 4B vs gpt-oss-20b
Prices checked
gpt-oss-20b takes 3 of 5 rounds against Gemma 3 4B. It is also the cheaper of the two to run, at $0.02 per million tokens against $0.04.
GoogleGemma 3 4B
131k context · reads images · open weights
$0.04/M tokensOpenRouter's own price · 2.7¢ per 1,000 pages
OpenAIWins 3 roundsgpt-oss-20b
131k context · tool calling · open weights
$0.02/M tokensCheapest price, at Eden AI · 0.81¢ per 1,000 pages
Maker's price in (lower wins)
$0.04/M
$0.02/M
Maker's price out (lower wins)
$0.05/M
$0.09/M
Cheapest price (lower wins)
none below the maker
$0.02/M at Eden AI
Maker's price, blended (lower wins)
$0.04/M
$0.04/M
Cost per 1,000 pages (lower wins)
2.7¢
0.81¢
Context
131k tokens
131k tokens
Open weights
yes
yes
Tool calling
no
yes
Structured output
yes
yes
Reads images
yes
no
Reasoning
no
yes
Released
13 Mar 2025
5 Aug 2025
Providers selling it
12
48
Price we measure against
OpenRouter
OpenRouter
Trains on your prompts (no is better)
no provider to check
not published
Providers selling both · 10
TrustedRouter$0.05 / $0.02
Kilo Gateway$0.04 / $0.04
OpenRouter$0.04 / $0.04
Eden AI$0.06 / $0.02
Parasail$0.04 / $0.06
Merge Gateway$0.05 / $0.07
DeepInfra$0.06 / $0.06
NanoGPT$0.20 / $0.04
Gemma 3 4B, then gpt-oss-20b, per million tokens; the 8 cheapest of 10.
Go further
Add a third or fourth model, or change the weighting, in the tool.
What moved this week
- 4¢ / 5¢ 5¢ / $0.10
- OpenRouter · 32% cheaper · 4¢ / 5¢ 5¢ / $0.10
Impossibl · 3% dearer · 7.5¢ / $0.30 7¢ / $0.30- TrustedRouter · 20% cheaper · 4.2¢ / 8.4¢ 5.3¢ / $0.11
io.net Intelligence · 0.6% cheaper · 5.5¢ / $0.19 5.5¢ / $0.20- NanoGPT · 82% cheaper · 2¢ / $0.10 $0.20 / $0.30
FastRouter · 31% dearer · 7¢ / $0.25 5¢ / $0.20- Kilo Gateway · 32% cheaper · 4¢ / 5¢ 5¢ / $0.10
Frequently asked
- Which is cheaper, Gemma 3 4B or gpt-oss-20b?
- gpt-oss-20b, at $0.02 per million tokens against $0.04 for Gemma 3 4B, blended 3 in : 1 out, read on 21 Oct 2026.
- Where is each one cheapest?
- Gemma 3 4B: nobody sells it below OpenRouter's own price with a stated reason, so $0.04 is the number to beat. gpt-oss-20b: $0.02 at Eden AI.
- Can I buy both from one provider?
- Yes. 10 providers sell both: TrustedRouter, Kilo Gateway, OpenRouter, Eden AI, Parasail, Merge Gateway, and more. The cheapest of them for the two together is TrustedRouter.
- Which holds more context?
- Both hold 131k tokens in one call.
Prices exclude tax, read 21 Oct 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.
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