DeepSeek-V4-Flash vs Muse Spark 1.1
Wins 2 of 7 areas
Agents · Long documents
Wins 3 of 7 areas
Coding · Facts · Following instructions
Muse Spark 1.1 wins more areas, narrowly.DeepSeek-V4-Flash is cheaper and better at agents.
Scores updated · 31 tests both models report · How we compare
Where each one wins
Tests won in each of the seven areas where both have results. 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 software05Muse Spark 1.15 of 6 tests · 1 tie
- FactsGetting facts right instead of making them up03Muse Spark 1.13 of 3 tests
- Following instructionsDoing exactly what it is asked01Muse Spark 1.11 of 1 test
- AgentsCarrying out multi-step tasks on its own31DeepSeek-V4-Flash3 of 4 tests
- Long documentsFinding answers in very long texts10DeepSeek-V4-Flash1 of 1 test
- ReasoningHard problems that need careful thinking22Even2 each
- MathCompetition and research-level math00Even0 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.
DeepSeek-V4-Flash costs 68% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Muse Spark 1.1 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+41.7points ahead
- Short factual questions, answered correctlySimpleQA Verified+23.7points ahead
- Multi-step tasks using many real software toolsMCP Atlas+19.1points ahead
Where DeepSeek-V4-Flash pulls ahead
- Real work tasks from 44 professionsGDPVal+11.2points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+7.6points ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+6points ahead
Every test, side by side
All 31 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingMuse Spark 1.1
- LiveBench · Agentic CodingMuse Spark 1.1 by 11.746.858.5+11.7
- LMArena · WebDevMuse Spark 1.1 by 112 rating points14301542+112 rating
- SWE-bench ProMuse Spark 1.1 by 8.952.661.5+8.9
- SciCodeMuse Spark 1.1 by 8.550.358.8+8.5
- LiveBench · CodingMuse Spark 1.1 by 2.27577.2+2.2
- Terminal-Bench 2.1tie78.777.9tie
AgentsDeepSeek-V4-Flash
- MCP AtlasMuse Spark 1.1 by 19.16988.1+19.1
- GDPValDeepSeek-V4-Flash by 11.246.935.7+11.2
- τ-Bench V3 · BankingDeepSeek-V4-Flash by 7.639.431.8+7.6
- Terminal-Bench 4.0DeepSeek-V4-Flash by 612.16.1+6
ReasoningEven
- Humanity's Last ExamMuse Spark 1.1 by 7.638.646.2+7.6
- CritPtDeepSeek-V4-Flash by 1.516.615.1+1.5
- LiveBench · ReasoningMuse Spark 1.1 by 1.186.687.7+1.1
- GPQA DiamondDeepSeek-V4-Flash by 190.889.8+1
FactsMuse Spark 1.1
- AA-Omniscience · Non-hallucinationMuse Spark 1.1 by 41.78.350+41.7
- SimpleQA VerifiedMuse Spark 1.1 by 23.734.157.8+23.7
- AA-Omniscience · AccuracyMuse Spark 1.1 by 11.740.452+11.7
Following instructionsMuse Spark 1.1
- LiveBench · Instruction FollowingMuse Spark 1.1 by 4.165.569.6+4.1
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.
- AA-OmniscienceMuse Spark 1.1 by 42.4-14.328.1+42.4
- CyberGymDeepSeek-V4-Flash by 17.776.759+17.7
- AA Agentic IndexDeepSeek-V4-Flash by 14.241.727.5+14.2
- JobBenchMuse Spark 1.1 by 13.441.354.7+13.4
- livebench_data_analysisDeepSeek-V4-Flash by 6.779.372.5+6.7
- ToolathlonMuse Spark 1.1 by 5.370.375.6+5.3
- Toolathlon VerifiedMuse Spark 1.1 by 5.370.375.6+5.3
- livebench_languageDeepSeek-V4-Flash by 4.979.274.3+4.9
- Artificial Analysis Coding IndexMuse Spark 1.1 by 2.269.171.3+2.2
- DeepSWE 1.1DeepSeek-V4-Flash by 1.454.453+1.4
- AA Intelligencetie34.333.7tie
Questions people ask
Which is better, DeepSeek-V4-Flash or Muse Spark 1.1?
Muse Spark 1.1 wins three of the seven areas where both have results: coding, facts and following instructions. DeepSeek-V4-Flash wins agents and long documents, and costs 68% less. They are level on reasoning and math.
Which is better for coding?
Muse Spark 1.1. It wins 5 of the 6 coding tests both models report; DeepSeek-V4-Flash wins none, and 1 is a tie.
Which is cheaper?
DeepSeek-V4-Flash costs $0.44 per million input tokens and $1.32 per million output tokens; Muse Spark 1.1 costs $1.25 and $4.25. That makes DeepSeek-V4-Flash about 68% cheaper for the same work.
How do you compare the two?
We use the 31 benchmark tests both models have published scores on. The verdict counts the 20 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.