Model comparison
DeepSeek V3 vs Gemini 3.1 Flash-Lite
Head-to-head evidence from 15 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: DeepSeek V3 #147 (Supported); Gemini 3.1 Flash-Lite #111 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. DeepSeek V3 and Gemini 3.1 Flash-Lite share 15 comparable benchmark results. 0 of 8 categories are comparable. 7 results are unique to DeepSeek V3; 5 to Gemini 3.1 Flash-Lite.
Updated July 23, 2026- Shared results
- 15
- DeepSeek V3 only
- 7
- Gemini 3.1 Flash-Lite only
- 5
- Comparable categories
- 0 / 8
Benchmark data for DeepSeek V3 and Gemini 3.1 Flash-Lite is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 15 shared benchmark results across 5 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Gemini 3.1 Flash-Lite is priced at $0.25 input / $1.50 output per 1M tokens, versus $0.27 input / $1.10 output per 1M tokens for DeepSeek V3. Gemini 3.1 Flash-Lite has the larger context window at 1M, compared with 128K for DeepSeek V3.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | DeepSeek V3 | Δ | Gemini 3.1 Flash-Lite |
|---|---|---|---|
| Coding | DeepSeek V338.9 | MarginNo overlap | Gemini 3.1 Flash-LiteNot measured |
| Knowledge | DeepSeek V372.7 | MarginNo overlap | Gemini 3.1 Flash-LiteNot measured |
| Math | DeepSeek V31.7 | MarginNo overlap | Gemini 3.1 Flash-LiteNot measured |
| Multimodal | DeepSeek V3Not measured | MarginNo overlap | Gemini 3.1 Flash-Lite73.2 |
| Inst. Following | DeepSeek V386.1 | MarginNo overlap | Gemini 3.1 Flash-LiteNot measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | DeepSeek V3 | Gemini 3.1 Flash-Lite | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | DeepSeek V3$0.27 input / $1.1 output | Gemini 3.1 Flash-Lite$0.25 input / $1.5 output | DeepSeek V3 has the lower combined listed price. |
| Generation speedtokens per second | DeepSeek V3Not available | Gemini 3.1 Flash-Lite205 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | DeepSeek V3Not available | Gemini 3.1 Flash-Lite7.50 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | DeepSeek V3128K | Gemini 3.1 Flash-Lite1M | Gemini 3.1 Flash-Lite lists the larger context window. |
Benchmark Deep Dive
Agentic6 benchmarks
| Benchmark | DeepSeek V3 | Gemini 3.1 Flash-Lite | Result |
|---|---|---|---|
| AA Agentic IndexSource | 1.6% | 6.2% | Gemini 3.1 Flash-Lite leads |
| τ²-bench resultsSource | 22.8% | 31.3% | Gemini 3.1 Flash-Lite leads |
| GDPval-AASource | 0.0% | 7.1% | Gemini 3.1 Flash-Lite leads |
| GDPval-AASource | 217 | 642 | Gemini 3.1 Flash-Lite leads |
| APEX-Agents-AASource | — | 12.2% | Not comparable |
| Gert LabsSource | — | 38.46% | Not comparable |
Coding5 benchmarks
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | DeepSeek V3 | Gemini 3.1 Flash-Lite | Result |
|---|---|---|---|
| GPQASource | 59.1% | — | Not comparable |
| MMLU-ProSource | 75.9% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 14.2% | 25.0% | Gemini 3.1 Flash-Lite leads |
| AA-GPQA DiamondSource | 55.7% | 82.2% | Gemini 3.1 Flash-Lite leads |
| AA-HLESource | 3.6% | 16.2% | Gemini 3.1 Flash-Lite leads |
| AA-Omniscience IndexSource | -41.3% | -15.5% | Gemini 3.1 Flash-Lite leads |
| AA-Omniscience AccuracySource | 25.4% | 36.4% | Gemini 3.1 Flash-Lite leads |
| AA-Omniscience Hallucination RateSource | 89.4% | 81.6% | Gemini 3.1 Flash-Lite leads |
Math1 benchmarks
| Benchmark | DeepSeek V3 | Gemini 3.1 Flash-Lite | Result |
|---|---|---|---|
| FrontierMath v2 (Tiers 1-3)Source | 1.724% | — | Not comparable |
Multimodal3 benchmarks
Frequently Asked Questions (3)
Can I compare DeepSeek V3 and Gemini 3.1 Flash-Lite on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for DeepSeek V3 and Gemini 3.1 Flash-Lite today?
DeepSeek V3: $0.27 input / $1.10 output per 1M tokens Gemini 3.1 Flash-Lite: $0.25 input / $1.50 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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