Seed-2.0-Code vs Qwen3.5-122B-A10B
Qwen3.5-122B-A10B costs 1.4x less per output token than Seed-2.0-Code ($2.08 vs $3.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $3.00
- Coding
- No data
- Overall
- No data
- Output $/M
- $2.08
Seed-2.0-Code or Qwen3.5-122B-A10B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Compare them on price, context and the boards below.
No benchmark has tested both yet. Seed-2.0-Code has none yet; Qwen3.5-122B-A10B on LMArena WebDev, AA Coding Index and SciCode. Compare them on price and context instead.
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
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Qwen3.5-122B-A10B has a AA Intelligence Index result, 17.7.
Directional only
Long documents
Listed context window
No call
Both take 262K tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Qwen3.5-122B-A10B
Seed-2.0-Code $0.0020, Qwen3.5-122B-A10B $0.0013 per turn.
List prices
At a glance
- Coding index
- Seed-2.0-Code not benchmarked, Qwen3.5-122B-A10B not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- Seed-2.0-Code $3.00 against Qwen3.5-122B-A10B $2.08 per million output tokens, 1.4x apart.
- Context window
- Both take 262K tokens.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
CodingDirectional onlySix of these boards feed the Vibe Coding Index8 boards measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| LMArena WebDev | Not measured | 1361 | Only Qwen3.5-122B-A10B measured |
| AA Coding Index | Not measured | 43.3 | Only Qwen3.5-122B-A10B measured |
| SciCode | Not measured | 39.7% | Only Qwen3.5-122B-A10B measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 31.1% | Only Qwen3.5-122B-A10B measured |
| LMArena Text: coding | Not measured | 1436 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: software and IT | Not measured | 1436 | Only Qwen3.5-122B-A10B measured |
| LMArena WebDev: React | Not measured | 1353 | Only Qwen3.5-122B-A10B measured |
| LMArena WebDev: HTML | Not measured | 1351 | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 31 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 17.7 | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| τ²-Bench Telecom | Not measured | 93.6% | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 40 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index8 boards measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 85.7% | Only Qwen3.5-122B-A10B measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 25.2% | Only Qwen3.5-122B-A10B measured |
| Mystery game puzzles | Not measured | 17.0% | Only Qwen3.5-122B-A10B measured |
| LMArena Text: hard prompts | Not measured | 1421 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: expert | Not measured | 1431 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: hard prompts in English | Not measured | 1431 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: diagrams | Not measured | 1249 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: homework | Not measured | 1261 | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 14 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| LMArena Text: math | Not measured | 1431 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: mathematical work | Not measured | 1431 | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 11 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| LMArena Text: science | Not measured | 1432 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: medicine and healthcare | Not measured | 1423 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: legal and government | Not measured | 1422 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: business and finance | Not measured | 1414 | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 14 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index27 boards measured
| Benchmark | Seed-2.0-Code | Qwen3.5-122B-A10B | Leader |
|---|---|---|---|
| IFBench | Not measured | 75.7% | Only Qwen3.5-122B-A10B measured |
| Long context reasoning (AA-LCR) | Not measured | 76.3% | Only Qwen3.5-122B-A10B measured |
| DTBench | Not measured | 84.3% | Only Qwen3.5-122B-A10B measured |
| LMCA | Not measured | 32.2% | Only Qwen3.5-122B-A10B measured |
| LMArena Text | Not measured | 1417 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: instruction following | Not measured | 1399 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: creative writing | Not measured | 1368 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision | Not measured | 1244 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: English | Not measured | 1428 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: non-English | Not measured | 1401 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: Chinese | Not measured | 1463 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: German | Not measured | 1425 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: Japanese | Not measured | 1367 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: Korean | Not measured | 1353 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: French | Not measured | 1443 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: Spanish | Not measured | 1425 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: Russian | Not measured | 1400 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: Polish | Not measured | 1398 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: multi-turn | Not measured | 1416 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: longer queries | Not measured | 1410 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: writing and language | Not measured | 1387 | Only Qwen3.5-122B-A10B measured |
| LMArena Text: entertainment and media | Not measured | 1366 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: English | Not measured | 1249 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: Chinese | Not measured | 1301 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: reading text | Not measured | 1251 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: humor | Not measured | 1243 | Only Qwen3.5-122B-A10B measured |
| LMArena Vision: creative writing | Not measured | 1220 | Only Qwen3.5-122B-A10B measured |
| Neither model has a result on the other 19 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
Qwen3.5-122B-A10B costs less
Repository review
50K input + 3K output tokens
Qwen3.5-122B-A10B costs less
Agent loop
200K input + 10K output tokens
Qwen3.5-122B-A10B 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 | ByteDance Seed Seed-2.0-Code | Qwen3.5-122B-A10B |
|---|---|---|
| Maker | ByteDance Seed | Qwen |
| Weights | No public weights listed | Open weights |
| Released | August 12, 2026 | February 25, 2026 |
| Context window | 262K | 262K |
| Input $/Mtok | $0.50 | $0.26 |
| Output $/Mtok | $3.00 | $2.08 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 1 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Seed-2.0-Code better than Qwen3.5-122B-A10B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Compare them on price, context and the boards below.
Which is cheaper, Seed-2.0-Code or Qwen3.5-122B-A10B?
Seed-2.0-Code costs $0.50 per million input tokens and $3.00 per million output tokens; Qwen3.5-122B-A10B costs $0.26 and $2.08. Cost per solved task is known for neither of them.
Which has the bigger context window, Seed-2.0-Code or Qwen3.5-122B-A10B?
Neither: both take 262K tokens.
Has any benchmark tested both Seed-2.0-Code and Qwen3.5-122B-A10B?
No benchmark has tested both yet. Seed-2.0-Code has none yet; Qwen3.5-122B-A10B on LMArena WebDev, AA Coding Index and SciCode. Compare them on price and context instead. Data as of October 22, 2026.