HEAD TO HEAD
Make the
right call.
Pick two to four models. Compare category evidence, price, context, speed and capabilities side by side.
Sign in to save this comparison →01 / SCORECARD
Coding focus · side by side
| Metric | DeepSeek V4.1 Flash | GPT-5.6 Sol |
|---|---|---|
| Quantum Score | 63QUANTUM SCORE | 55QUANTUM SCORE |
| Confidence / coverage | Moderate confidence · 85% · 3 independent domains | Moderate confidence · 85% · 4 independent domains |
| Context window | 1,000,000 tokens | 1,050,000 tokens |
| Modalities / tools | text, image · vision, tool use | text, image · tool use, vision |
| Coding | 55 | 71 +16 vs first |
| Reasoning | 92 | 69 -23 vs first |
| Math | 69 | 54 -15 vs first |
| Research | — | — |
| Agents | 100 | 20 -80 vs first |
| Multimodal | 0 | 67 +67 vs first |
| Speed | — | — |
| Value | 60 | 31 -29 vs first |
| Input / 1M | $0.30 | $4.00 |
| Output / 1M | $1.20 | $20.00 |
| Measured output speed | — | — |
02 / EVIDENCE
Published benchmark evidence
| Benchmark | DeepSeek V4.1 Flash | GPT-5.6 Sol |
|---|---|---|
| LiveBench code_completion · 2026-06-25 · Public table; published model effort variant | 82.609 % benchmark maintainer ↗ | 84.783 % benchmark maintainer ↗ |
| LiveBench code_generation · 2026-06-25 · Public table; published model effort variant | 77.465 % benchmark maintainer ↗ | 83.099 % benchmark maintainer ↗ |
| LiveBench javascript · 2026-06-25 · Public table; published model effort variant | 81.818 % benchmark maintainer ↗ | 63.636 % benchmark maintainer ↗ |
| LiveBench AMPS_Hard · 2026-06-25 · Public table; published model effort variant | 98 % benchmark maintainer ↗ | 98 % benchmark maintainer ↗ |
| LiveBench olympiad · 2026-06-25 · Public table; published model effort variant | 89.081 % benchmark maintainer ↗ | 91.693 % benchmark maintainer ↗ |
| LiveBench theory_of_mind · 2026-06-25 · Public table; published model effort variant | 80.769 % benchmark maintainer ↗ | 84.615 % benchmark maintainer ↗ |
| LiveBench zebra_puzzle · 2026-06-25 · Public table; published model effort variant | 100 % benchmark maintainer ↗ | 100 % benchmark maintainer ↗ |
| MMMU-Pro Mercor public leaderboard · MMMU-Pro Mercor public set · Mercor independent evaluation | 76.6 % independent lab ↗ | 83.6 % independent lab ↗ |
| MedXpertQA MM Mercor public leaderboard · MedXpertQA MM Mercor 200 public tasks · Mercor independent evaluation | 63.5 % independent lab ↗ | 79.5 % independent lab ↗ |
AS THE EVIDENCE CHANGED
Comparison history
Dated releases, price events, and benchmark publications. A price or test change can alter the factual comparison; this timeline does not pick a winner.
2026-09-10 · DeepSeek V4.1 Flash released ↗ · source
2026-07-09 · GPT-5.6 Sol released ↗ · source
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench code_completion (2026-06-25) at 84.783 % · source ↗
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench code_generation (2026-06-25) at 83.099 % · source ↗
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench javascript (2026-06-25) at 63.636 % · source ↗
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench AMPS_Hard (2026-06-25) at 98 % · source ↗
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench olympiad (2026-06-25) at 91.693 % · source ↗
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench theory_of_mind (2026-06-25) at 84.615 % · source ↗
2026-09-30 verified (test date not published) · gpt-5.6-sol entered LiveBench zebra_puzzle (2026-06-25) at 100 % · source ↗
2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench code_completion (2026-06-25) at 82.609 % · source ↗
2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench code_generation (2026-06-25) at 77.465 % · source ↗
2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench javascript (2026-06-25) at 81.818 % · source ↗
2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench AMPS_Hard (2026-06-25) at 98 % · source ↗
2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench olympiad (2026-06-25) at 89.081 % · source ↗
An overall score appears only after enough current, comparable, independently sourced results exist. Pricing and individual benchmark results remain visible meanwhile.