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Granite 4.2 8B vs Qwen3 Coder Flash

Granite 4.2 8B costs 4.9x less per output token than Qwen3 Coder Flash ($0.20 vs $0.975 per million). Updated October 22, 2026; no benchmark has tested both models yet.

Replace Granite 4.2 8B Replace Qwen3 Coder Flash
Granite 4.2 8BIBM Granite
Coding
No data
Overall
No data
Output $/M
$0.20
Qwen3 Coder FlashQwen
Coding
No data
Overall
No data
Output $/M
$0.975
vs $0.20 vs $0.975 per 1M output tokens. Granite 4.2 8B is 4.9x cheaper.

Granite 4.2 8B or Qwen3 Coder Flash: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick Granite 4.2 8B for output tokens 4.9x cheaper ($0.20 vs $0.975 per million).

Model AGranite 4.2 8BIBM GraniteNot benchmarkedNo coding benchmarkNo cost per solved taskModel BQwen3 Coder FlashQwenNot benchmarkedNo coding benchmarkNo cost per solved task

No benchmark has tested both yet. Granite 4.2 8B has results on AA Coding Index, SciCode and LMArena Text: coding; Qwen3 Coder Flash has none yet. 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.

At a glance

Coding index
Granite 4.2 8B not benchmarked, Qwen3 Coder Flash 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
Granite 4.2 8B $0.20 against Qwen3 Coder Flash $0.975 per million output tokens, 4.9x apart.
Context window
Granite 4.2 8B takes 131K tokens, Qwen3 Coder Flash 1M.

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 Index4 boards measured
Coding benchmarks for Granite 4.2 8B and Qwen3 Coder Flash
BenchmarkGranite 4.2 8BQwen3 Coder FlashLeader
AA Coding Index22.4Not measuredOnly Granite 4.2 8B measured
SciCode31.5%Not measuredOnly Granite 4.2 8B measured
LMArena Text: coding1378Not measuredOnly Granite 4.2 8B measured
LMArena Text: software and IT1367Not measuredOnly Granite 4.2 8B measured
Neither model has a result on the other 35 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Intelligence benchmarks for Granite 4.2 8B and Qwen3 Coder Flash
BenchmarkGranite 4.2 8BQwen3 Coder FlashLeader
AA Intelligence Index11.1Not measuredOnly Granite 4.2 8B 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
Agentic work benchmarks for Granite 4.2 8B and Qwen3 Coder Flash
BenchmarkGranite 4.2 8BQwen3 Coder FlashLeader
AA Agentic Index1.3Not measuredOnly Granite 4.2 8B measured
Neither model has a result on the other 40 boards here
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index5 boards measured
Reasoning benchmarks for Granite 4.2 8B and Qwen3 Coder Flash
BenchmarkGranite 4.2 8BQwen3 Coder FlashLeader
GPQA Diamond (Artificial Analysis run)63.1%Not measuredOnly Granite 4.2 8B measured
Humanity's Last Exam (Artificial Analysis run)9.7%Not measuredOnly Granite 4.2 8B measured
LMArena Text: hard prompts1327Not measuredOnly Granite 4.2 8B measured
LMArena Text: expert1386Not measuredOnly Granite 4.2 8B measured
LMArena Text: hard prompts in English1345Not measuredOnly Granite 4.2 8B measured
Neither model has a result on the other 17 boards here
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
Knowledge benchmarks for Granite 4.2 8B and Qwen3 Coder Flash
BenchmarkGranite 4.2 8BQwen3 Coder FlashLeader
LMArena Text: science1336Not measuredOnly Granite 4.2 8B measured
LMArena Text: medicine and healthcare1336Not measuredOnly Granite 4.2 8B measured
LMArena Text: legal and government1327Not measuredOnly Granite 4.2 8B measured
LMArena Text: business and finance1322Not measuredOnly Granite 4.2 8B measured
Neither model has a result on the other 14 boards here
GeneralDirectional onlyPublic boards, shown as published, kept out of the index12 boards measured
General benchmarks for Granite 4.2 8B and Qwen3 Coder Flash
BenchmarkGranite 4.2 8BQwen3 Coder FlashLeader
Long context reasoning (AA-LCR)45.0%Not measuredOnly Granite 4.2 8B measured
LMArena Text1319Not measuredOnly Granite 4.2 8B measured
LMArena Text: instruction following1300Not measuredOnly Granite 4.2 8B measured
LMArena Text: creative writing1236Not measuredOnly Granite 4.2 8B measured
LMArena Text: English1337Not measuredOnly Granite 4.2 8B measured
LMArena Text: non-English1301Not measuredOnly Granite 4.2 8B measured
LMArena Text: Chinese1367Not measuredOnly Granite 4.2 8B measured
LMArena Text: Russian1282Not measuredOnly Granite 4.2 8B measured
LMArena Text: multi-turn1301Not measuredOnly Granite 4.2 8B measured
LMArena Text: longer queries1325Not measuredOnly Granite 4.2 8B measured
LMArena Text: writing and language1269Not measuredOnly Granite 4.2 8B measured
LMArena Text: entertainment and media1271Not measuredOnly Granite 4.2 8B measured
Neither model has a result on the other 34 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

Granite 4.2 8B$0.0002Fits in one request
Qwen3 Coder Flash$0.0007Fits in one request

Granite 4.2 8B costs less

Repository review

50K input + 3K output tokens

Granite 4.2 8B$0.0046Fits in one request
Qwen3 Coder Flash$0.013Fits in one request

Granite 4.2 8B costs less

Agent loop

200K input + 10K output tokens

Granite 4.2 8B$0.018Exceeds the context window
Qwen3 Coder Flash$0.049Fits in one request

Granite 4.2 8B 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.

Specifications of Granite 4.2 8B and Qwen3 Coder Flash
SpecificationIBM Granite 4.2 8BQwen3 Coder Flash
MakerIBM GraniteQwen
WeightsOpen weightsNo public weights listed
ReleasedAugust 31, 2026September 17, 2025
Context window131K1M
Input $/Mtok$0.08$0.195
Output $/Mtok$0.20$0.975
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Granite 4.2 8B better than Qwen3 Coder Flash for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Granite 4.2 8B for output tokens 4.9x cheaper ($0.20 vs $0.975 per million).

Which is cheaper, Granite 4.2 8B or Qwen3 Coder Flash?

Granite 4.2 8B costs $0.08 per million input tokens and $0.20 per million output tokens; Qwen3 Coder Flash costs $0.195 and $0.975. Cost per solved task is known for neither of them.

Which has the bigger context window, Granite 4.2 8B or Qwen3 Coder Flash?

Qwen3 Coder Flash, with 1M tokens against 131K.

Has any benchmark tested both Granite 4.2 8B and Qwen3 Coder Flash?

No benchmark has tested both yet. Granite 4.2 8B has results on AA Coding Index, SciCode and LMArena Text: coding; Qwen3 Coder Flash has none yet. Compare them on price and context instead. Data as of October 22, 2026.

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