Gemma 4 26B A4B vs GPT-5.6 Sol
Wins 1 of 8 areas
Facts
Wins 6 of 8 areas
Coding · Agents · Reasoning · Images and charts · Math · Long documents
GPT-5.6 Sol is the stronger all-rounder.Gemma 4 26B A4B is cheaper and better at facts.
Scores updated · 33 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software05GPT-5.6 Sol5 of 5 tests
- AgentsCarrying out multi-step tasks on its own05GPT-5.6 Sol5 of 5 tests
- ReasoningHard problems that need careful thinking03GPT-5.6 Sol3 of 3 tests
- Images and chartsUnderstanding pictures, charts and video03GPT-5.6 Sol3 of 3 tests
- MathCompetition and research-level math01GPT-5.6 Sol1 of 1 test
- Long documentsFinding answers in very long texts01GPT-5.6 Sol1 of 1 test
- FactsGetting facts right instead of making them up21Gemma 4 26B A4B2 of 3 tests
- Following instructionsDoing exactly what it is asked00Even0 each · 1 tie
Math, long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
Gemma 4 26B A4B costs 98% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GPT-5.6 Sol pulls ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+64.1points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+52.3points ahead
- Real work tasks from 44 professionsGDPVal+52.2points ahead
Where Gemma 4 26B A4B pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+5.8points ahead
Every test, side by side
All 33 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.6 Sol
- Terminal-Bench HardGPT-5.6 Sol by 52.313.665.9+52.3
- SWE-bench ProGPT-5.6 Sol by 50.813.864.6+50.8
- Terminal-Bench 2.1GPT-5.6 Sol by 493988+49
- LMArena · WebDevGPT-5.6 Sol by 259 rating points13591618+259 rating
- SciCodeGPT-5.6 Sol by 17.14057.1+17.1
AgentsGPT-5.6 Sol
- BrowseCompGPT-5.6 Sol by 64.126.390.4+64.1
- GDPValGPT-5.6 Sol by 52.23.455.6+52.2
- MCP AtlasGPT-5.6 Sol by 33.65083.6+33.6
- AA IT-Bench SREGPT-5.6 Sol by 32.623.656.2+32.6
- τ-Bench V3 · BankingGPT-5.6 Sol by 32.31244.3+32.3
ReasoningGPT-5.6 Sol
- CritPtGPT-5.6 Sol by 32.3032.3+32.3
- Humanity's Last ExamGPT-5.6 Sol by 30.219.349.5+30.2
- GPQA DiamondGPT-5.6 Sol by 14.979.294.1+14.9
FactsGemma 4 26B A4B
- AA-Omniscience · AccuracyGPT-5.6 Sol by 40.319.159.4+40.3
- Vectara HHEM hallucination ratelower is betterGemma 4 26B A4B by 7.25.212.4+7.2
- AA-Omniscience · Non-hallucinationGemma 4 26B A4B by 5.813.67.8+5.8
Images and chartsGPT-5.6 Sol
- CharXiv (RQ)GPT-5.6 Sol by 16.86985.8+16.8
- MMMU-ProGPT-5.6 Sol by 14.269.283.4+14.2
- LMArena · VisionGPT-5.6 Sol by 19 rating points12601279+19 rating
Other results11 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- GDPval-AA v2GPT-5.6 Sol by 904 rating points8071711+904 rating
- AA-OmniscienceGPT-5.6 Sol by 72.8-50.822+72.8
- HLE (with tools)GPT-5.6 Sol by 47.317.264.5+47.3
- τ²-Bench Telecom (AA run)GPT-5.6 Sol by 41.543.685.1+41.5
- AA Agentic IndexGPT-5.6 Sol by 39.51150.5+39.5
- Artificial Analysis Coding IndexGPT-5.6 Sol by 38.139.377.4+38.1
- AA IntelligenceGPT-5.6 Sol by 30.316.747+30.3
- τ³-Bench BankingGPT-5.6 Sol by 191433+19
- vectara_factual_consistencyGemma 4 26B A4B by 7.294.887.6+7.2
- vectara_avg_summary_lengthGPT-5.6 Sol by 64 rating points67.1131.1+64 rating
- vectara_answer_ratetie99.899.1tie
Questions people ask
Which is better, Gemma 4 26B A4B or GPT-5.6 Sol?
GPT-5.6 Sol wins six of the eight areas we test: coding, agents, reasoning, images and charts, math and long documents. Gemma 4 26B A4B wins facts, and costs 98% less. They are level on following instructions.
Which is better for coding?
GPT-5.6 Sol. It wins 5 of the 5 coding tests both models report; Gemma 4 26B A4B wins none.
Which is cheaper?
Gemma 4 26B A4B costs $0.13 per million input tokens and $0.40 per million output tokens; GPT-5.6 Sol costs $4.00 and $20.00. That makes Gemma 4 26B A4B about 98% cheaper for the same work.
How do you compare the two?
We use the 33 benchmark tests both models have published scores on. The verdict counts the 22 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 11 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.