Ember-1 vs Gemini 3.5 Flash Lite
Ember-1 leads Gemini 3.5 Flash Lite on coding, 52.6 to 49.0 on the Vibe Coding Index, and Gemini 3.5 Flash Lite costs 6.0x less per output token ($2.50 vs $15.00 per million). Updated October 21, 2026; 8 benchmarks have a result for both.
Ember-1 or Gemini 3.5 Flash Lite: which to pick
Pick Ember-1 for coding: it scores 52.6 on the Vibe Coding Index against 49.0 for Gemini 3.5 Flash Lite, though on 2 benchmarks against 3.
Pick Gemini 3.5 Flash Lite for output tokens 6.0x cheaper ($2.50 vs $15.00 per million).
- Shared results
- 8
- Ember-1 only
- 6
- Gemini 3.5 Flash Lite only
- 77
- Like-for-like categories
- 3 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
Ember-1
Ember-1 scores 52.6 against 49.0.
2 and 3 benchmarks behind the scores
Intelligence
AA Intelligence Index
No call
Only Gemini 3.5 Flash Lite has a AA Intelligence Index result, 22.2.
Directional only
Agentic work
AA Agentic Index
No call
Only Gemini 3.5 Flash Lite has a AA Agentic Index result, 14.3.
Directional only
Reasoning
GPQA Diamond
No call
Only Gemini 3.5 Flash Lite has a GPQA Diamond result, 83.8%.
Directional only
Knowledge
MMLU Pro
No call
Only Gemini 3.5 Flash Lite has a MMLU Pro result, 85.8%.
Directional only
Long documents
Listed context window
No call
Both take 1.05M tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Gemini 3.5 Flash Lite
Ember-1 $0.011, Gemini 3.5 Flash Lite $0.0015 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Gemini 3.5 Flash Lite has the number, $0.41.
Directional only
At a glance
- Coding index
- Ember-1 52.6 from 2 benchmarks, Gemini 3.5 Flash Lite 49.0 from 3 benchmarks.
- Widest category
- Coding, 27.8 points apart on average over 3 shared benchmarks.
- Widest single gap
- Vibe Code Bench (Vals AI): Ember-1 83.9% against Gemini 3.5 Flash Lite 37.2%, 46.7 points apart on a 0 to 100 scale.
- Output price
- Ember-1 $15.00 against Gemini 3.5 Flash Lite $2.50 per million output tokens, 6.0x apart.
- Context window
- Both take 1.05M tokens.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Ember-1 | Bars | Gemini 3.5 Flash Lite | Ties |
|---|---|---|---|---|
| Coding | 3 | 0 | ||
| Agentic work | 4 | 0 | ||
| General | 1 | 0 | ||
| All shared boards | 8 | 0 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| LMArena WebDev | Not measured | 1435 | Only Gemini 3.5 Flash Lite measured |
| AA Coding Index | Not measured | 49.3 | Only Gemini 3.5 Flash Lite measured |
| LiveCodeBench (Vals AI) | Not measured | 79.0% | Only Gemini 3.5 Flash Lite measured |
| SWE-bench Verified (Vals AI) | Not measured | 75.0% | Only Gemini 3.5 Flash Lite measured |
| Terminal-Bench 4 (Vals AI) | 20.7% | Not measured | Only Ember-1 measured |
| Vibe Code Bench (Vals AI) | 83.9% | 37.2% | Ember-1 |
| Code migration (Vals AI) | 32.5% | 6.2% | Ember-1 |
| ProgramBench (Vals AI) | Not measured | 0.0% | Only Gemini 3.5 Flash Lite measured |
| IOI (Vals AI) | 46.3% | Not measured | Only Ember-1 measured |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 50.2% | Only Gemini 3.5 Flash Lite measured |
| CyberBench (Vals AI) | 69.5% | 59.1% | Ember-1 |
| SciCode | Not measured | 41.3% | Only Gemini 3.5 Flash Lite measured |
| WeirdML | Not measured | 39.0% | Only Gemini 3.5 Flash Lite measured |
| ALE-Bench | Not measured | 765.3 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: coding | Not measured | 1453 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: software and IT | Not measured | 1451 | Only Gemini 3.5 Flash Lite measured |
| LMArena WebDev: React | Not measured | 1408 | Only Gemini 3.5 Flash Lite measured |
| LMArena WebDev: from an image | Not measured | 1448 | Only Gemini 3.5 Flash Lite measured |
| SciCode | Not measured | 6.2% | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 20 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 22.2 | Only Gemini 3.5 Flash Lite measured |
| Epoch Capabilities Index | Not measured | 144.9 | Only Gemini 3.5 Flash Lite measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| AA Agentic Index | Not measured | 14.3 | Only Gemini 3.5 Flash Lite measured |
| Finance Agent (Vals AI) | 51.8% | 47.4% | Ember-1 |
| Tax Agent Bench (Vals AI) | 31.1% | 7.2% | Ember-1 |
| Legal Research Bench (Vals AI) | 44.7% | 13.9% | Ember-1 |
| Excel Modeling Benchmark (Vals AI) | 63.4% | 43.2% | Ember-1 |
| BioMysteryBench (Vals AI) | 67.0% | Not measured | Only Ember-1 measured |
| Terminal-Bench-Science (Vals AI) | 5.7% | Not measured | Only Ember-1 measured |
| Vals Science Index | 31.8% | Not measured | Only Ember-1 measured |
| APEX-Agents | Not measured | 29.3% | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 32 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index15 boards, none shared
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 83.8% | Only Gemini 3.5 Flash Lite measured |
| MysteryMechanism (Vals AI) | 22.5% | Not measured | Only Ember-1 measured |
| MMMU Pro (Vals AI) | Not measured | 83.6% | Only Gemini 3.5 Flash Lite measured |
| GPQA Diamond (Artificial Analysis run) | Not measured | 83.8% | Only Gemini 3.5 Flash Lite measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 18.8% | Only Gemini 3.5 Flash Lite measured |
| GPQA Diamond (Epoch AI run) | Not measured | 83.3% | Only Gemini 3.5 Flash Lite measured |
| ARC-AGI | Not measured | 53.5% | Only Gemini 3.5 Flash Lite measured |
| ARC-AGI-2 | Not measured | 10.3% | Only Gemini 3.5 Flash Lite measured |
| Chess puzzles | Not measured | 21.0% | Only Gemini 3.5 Flash Lite measured |
| Mystery game puzzles | Not measured | 19.0% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: hard prompts | Not measured | 1441 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: expert | Not measured | 1434 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: hard prompts in English | Not measured | 1440 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: diagrams | Not measured | 1284 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: homework | Not measured | 1291 | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 7 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| OTIS Mock AIME | Not measured | 71.1% | Only Gemini 3.5 Flash Lite measured |
| FrontierMath, tiers 1 to 3 | Not measured | 26.0% | Only Gemini 3.5 Flash Lite measured |
| FrontierMath, tier 4 | Not measured | 0.0% | Only Gemini 3.5 Flash Lite measured |
| ProofBench | Not measured | 13.0% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: math | Not measured | 1434 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: mathematical work | Not measured | 1433 | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 7 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index11 boards, none shared
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 85.8% | Only Gemini 3.5 Flash Lite measured |
| LegalBench (Vals AI) | Not measured | 84.1% | Only Gemini 3.5 Flash Lite measured |
| CorpFin (Vals AI) | Not measured | 60.7% | Only Gemini 3.5 Flash Lite measured |
| TaxEval (Vals AI) | Not measured | 72.6% | Only Gemini 3.5 Flash Lite measured |
| MortgageTax (Vals AI) | Not measured | 68.7% | Only Gemini 3.5 Flash Lite measured |
| MedCode (Vals AI) | Not measured | 43.5% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: science | Not measured | 1451 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: medicine and healthcare | Not measured | 1438 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: legal and government | Not measured | 1431 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: business and finance | Not measured | 1423 | Only Gemini 3.5 Flash Lite measured |
| FACTS Benchmark Suite | Not measured | 53.5% | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 7 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| Public Benefits Bench (Vals AI) | 66.2% | 51.8% | Ember-1 |
| SAGE (Vals AI) | Not measured | 47.3% | Only Gemini 3.5 Flash Lite measured |
| MedScribe (Vals AI) | Not measured | 70.9% | Only Gemini 3.5 Flash Lite measured |
| Long context reasoning (AA-LCR) | Not measured | 76.0% | Only Gemini 3.5 Flash Lite measured |
| DTBench | Not measured | 83.5% | Only Gemini 3.5 Flash Lite measured |
| LMCA | Not measured | 37.6% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text | Not measured | 1435 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: instruction following | Not measured | 1419 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: creative writing | Not measured | 1421 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision | Not measured | 1269 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: English | Not measured | 1438 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: non-English | Not measured | 1427 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: Chinese | Not measured | 1468 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: German | Not measured | 1454 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: Japanese | Not measured | 1426 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: Korean | Not measured | 1407 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: French | Not measured | 1451 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: Spanish | Not measured | 1441 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: Russian | Not measured | 1443 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: Polish | Not measured | 1437 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: multi-turn | Not measured | 1445 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: longer queries | Not measured | 1435 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: writing and language | Not measured | 1428 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: entertainment and media | Not measured | 1414 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: English | Not measured | 1269 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: Chinese | Not measured | 1311 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: reading text | Not measured | 1280 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: humor | Not measured | 1287 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: creative writing | Not measured | 1260 | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 17 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Ember-1 | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Gemini 3.5 Flash Lite costs less
Repository review
50K input + 3K output tokens
Gemini 3.5 Flash Lite costs less
Agent loop
200K input + 10K output tokens
Gemini 3.5 Flash Lite costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Fireworks Ember-1 | Google Gemini 3.5 Flash Lite |
|---|---|---|
| Maker | Fireworks | |
| Weights | No public weights listed | No public weights listed |
| Released | September 24, 2026 | July 21, 2026 |
| Context window | 1.05M | 1.05M |
| Input $/Mtok | $3.00 | $0.30 |
| Output $/Mtok | $15.00 | $2.50 |
| Coding index | 52.6 | 49.0 |
| Independent measurements behind it | 2 | 3 |
| Cost per solved task | Not computable | $0.41 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Ember-1 better than Gemini 3.5 Flash Lite for coding?
Pick Ember-1 for coding: it scores 52.6 on the Vibe Coding Index against 49.0 for Gemini 3.5 Flash Lite, though on 2 benchmarks against 3. Pick Gemini 3.5 Flash Lite for output tokens 6.0x cheaper ($2.50 vs $15.00 per million).
Which is cheaper, Ember-1 or Gemini 3.5 Flash Lite?
Ember-1 costs $3.00 per million input tokens and $15.00 per million output tokens; Gemini 3.5 Flash Lite costs $0.30 and $2.50. Cost per solved task is known for Gemini 3.5 Flash Lite only.
Which has the bigger context window, Ember-1 or Gemini 3.5 Flash Lite?
Neither: both take 1.05M tokens.
How many benchmarks is the Ember-1 vs Gemini 3.5 Flash Lite comparison based on?
8 benchmarks have a result for both models as of October 21, 2026. Ember-1's coding index rests on 2 independent benchmarks and Gemini 3.5 Flash Lite's on 3. Where only one model has a result, the page says so instead of naming a winner.