Home / Compare / Gemma 3 27B IT vs GPT OSS 120B Gemma 3 27B IT vs GPT OSS 120B GPT OSS 120B grades higher overall (46.1 against 43.2). GPT OSS 120B costs 30% less for the same work, and both read a 128K-token context.
Model AClaude Fable 5 Claude Haiku 4.5 Claude Opus 4.7 Claude Opus 4.8 Claude Opus 5 Claude Opus 5.5 Claude Sonnet 4.6 Claude Sonnet 5 Claude Sonnet 5.5 DeepSeek R1 0528 DeepSeek V3 DeepSeek V3.1 DeepSeek V3.2 DeepSeek V4 Flash DeepSeek V4 Flash 0731 DeepSeek V4 Pro 0813 DeepSeek V4.1 Flash Gemini 2.5 Flash Gemini 2.5 Pro Gemini 3.1 Flash Lite Gemini 3.1 Pro Gemini 3.5 Flash Gemini 3.7 Flash Gemma 3 12B IT Gemma 3 27B IT Gemma 3 4B IT Gemma 4 26B A4B IT Gemma 4 31B IT GLM 4.6 GLM 4.7 GLM 5.2 GLM 5.3 GLM 5.3 Flash GPT OSS 120B GPT OSS 20B Granite 4.2 8B Hy4 Preview Inkling Small Kimi K2.6 Kimi K3 Ling 3.1 Flash Llama 3.3 70B Instruct Turbo Llama 4 Scout 17B 16E Instruct Meta Llama 3.1 70B Instruct Turbo Meta Llama 3.1 8B Instruct Turbo MiMo V2.6 Flash MiMo V2.6 Pro MiniMax M3 Mistral Small 24B Instruct 2501 Mistral Small 3.2 24B Instruct 2506 Muse Glimmer 30B NVIDIA Nemotron 3 Super 120B A12B NVIDIA Nemotron 3 Ultra 550B A55B NVIDIA Nemotron 3.5 Lightning Phi 4 Qwen2.5 72B Instruct Qwen3 235B A22B Instruct 2507 Qwen3 30B A3B Qwen3 32B Qwen3 Coder 480B A35B Instruct Turbo Qwen3 Next 80B A3B Instruct Qwen3 VL 235B A22B Instruct Qwen3.5 27B Qwen3.5 35B A3B Qwen3.5 397B A17B Qwen3.5 9B Qwen3.6 27B Qwen3.6 35B A3B Qwen3.7 Max Qwen3.8 27B Qwen3.8 Flash Qwen3.8 Max Seed 2.0 Pro Step 5 Preview Gemma 3 27B IT
by Google · #55 of 67 overall
Coming soon · price at launch
Context 128K
Input / 1M $0.080
Output / 1M $0.16 Model BClaude Fable 5 Claude Haiku 4.5 Claude Opus 4.7 Claude Opus 4.8 Claude Opus 5 Claude Opus 5.5 Claude Sonnet 4.6 Claude Sonnet 5 Claude Sonnet 5.5 DeepSeek R1 0528 DeepSeek V3 DeepSeek V3.1 DeepSeek V3.2 DeepSeek V4 Flash DeepSeek V4 Flash 0731 DeepSeek V4 Pro 0813 DeepSeek V4.1 Flash Gemini 2.5 Flash Gemini 2.5 Pro Gemini 3.1 Flash Lite Gemini 3.1 Pro Gemini 3.5 Flash Gemini 3.7 Flash Gemma 3 12B IT Gemma 3 27B IT Gemma 3 4B IT Gemma 4 26B A4B IT Gemma 4 31B IT GLM 4.6 GLM 4.7 GLM 5.2 GLM 5.3 GLM 5.3 Flash GPT OSS 120B GPT OSS 20B Granite 4.2 8B Hy4 Preview Inkling Small Kimi K2.6 Kimi K3 Ling 3.1 Flash Llama 3.3 70B Instruct Turbo Llama 4 Scout 17B 16E Instruct Meta Llama 3.1 70B Instruct Turbo Meta Llama 3.1 8B Instruct Turbo MiMo V2.6 Flash MiMo V2.6 Pro MiniMax M3 Mistral Small 24B Instruct 2501 Mistral Small 3.2 24B Instruct 2506 Muse Glimmer 30B NVIDIA Nemotron 3 Super 120B A12B NVIDIA Nemotron 3 Ultra 550B A55B NVIDIA Nemotron 3.5 Lightning Phi 4 Qwen2.5 72B Instruct Qwen3 235B A22B Instruct 2507 Qwen3 30B A3B Qwen3 32B Qwen3 Coder 480B A35B Instruct Turbo Qwen3 Next 80B A3B Instruct Qwen3 VL 235B A22B Instruct Qwen3.5 27B Qwen3.5 35B A3B Qwen3.5 397B A17B Qwen3.5 9B Qwen3.6 27B Qwen3.6 35B A3B Qwen3.7 Max Qwen3.8 27B Qwen3.8 Flash Qwen3.8 Max Seed 2.0 Pro Step 5 Preview GPT OSS 120B
by OpenAI · #53 of 67 overall
Coming soon · price at launch
Context 128K
Input / 1M $0.037
Output / 1M $0.17 Better overall
GPT OSS 120B
Grade 43.2 vs 46.1
Cheaper
GPT OSS 120B
30% less, $0.070 vs $0.10 blended
Larger context
Same
128K vs 128K tokens
Head to head Public benchmarks. Longer is better; each value links to its source.
LMArena Text Elo-style rating · LMArena (CC BY 4.0) · Oct 28, 2026 Aider Polyglot % of exercises solved · Aider (aider.chat) · Aug 6, 2025 Gemma 3 27B IT Gemma 3 27B IT: —
LiveCodeBench pass@1, % · LiveCodeBench · Mar 11, 2026 · reference GPT OSS 120B GPT OSS 120B: —
Gemma 3 27B IT $22.40 /month
GPT OSS 120B $14.20 /month
GPT OSS 120B saves you $8.20 a month at this usage, $98.40 a year.
At a glance Attribute Gemma 3 27B IT GPT OSS 120B Made by Google OpenAI Availability Coming soon Coming soon Overall grade Good · 43.2 Good · 46.1 Overall rank #55 of 67 #53 of 67 Input price $0.080 per 1M $0.037 per 1M Output price $0.16 per 1M $0.17 per 1M Context window 131,072 tokens 131,072 tokens Reasoning levels No Yes Reads images Yes No Model ID gemma-3-27b-it gpt-oss-120b
Try both with one key Same endpoint, same key, both hosted in the USA. Change one word to switch models, in Claude Code, Cursor, Cline or your own code.
Get your API key # Ask either model the same thing
curl https://fullsendai.com/v1/chat/completions \
-H "Authorization: Bearer $FULLSEND_API_KEY " \
-d '{"model": "gemma-3-27b-it", "messages": [...]}'
# …then swap one word
-d '{"model": "gpt-oss-120b", "messages": [...]}' Questions Is Gemma 3 27B IT or GPT OSS 120B better? GPT OSS 120B grades 46.1 against 43.2 for Gemma 3 27B IT, from public benchmarks.
Which is cheaper, Gemma 3 27B IT or GPT OSS 120B? GPT OSS 120B: $0.037 in and $0.17 out per million tokens, against $0.080 and $0.16 through FullsendAI.
Which has the larger context window? Neither: both take 131,072 tokens.
Can I use both with one API key? Yes, once they launch: both are coming soon, at the prices shown, and both will use the same FullsendAI key.
Scores: LMArena (CC BY 4.0), Aider (aider.chat), SWE-bench, LiveCodeBench, and model makers’ published results where marked v. Prices are FullsendAI’s, per million tokens. Data as of Oct 28, 2026.
