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GPT-5.2 Pro vs Muse Glimmer 30B

Muse Glimmer 30B costs 124.4x less per output token than GPT-5.2 Pro ($1.35 vs $168.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.

Replace GPT-5.2 Pro Replace Muse Glimmer 30B
GPT-5.2 ProOpenAI
Coding
No data
Overall
No data
Output $/M
$168.00
Muse Glimmer 30BMeta
Coding
No data
Overall
No data
Output $/M
$1.35
vs $168.00 vs $1.35 per 1M output tokens. Muse Glimmer 30B is 124.4x cheaper.

GPT-5.2 Pro or Muse Glimmer 30B: which to pick

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

Pick GPT-5.2 Pro for a larger context window (400K against 131K tokens).

Model AGPT-5.2 ProOpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BMuse Glimmer 30BMetaNot benchmarkedNo coding benchmarkNo cost per solved task

No benchmark has tested both yet. GPT-5.2 Pro has results on Epoch Capabilities Index, ARC-AGI and ARC-AGI-2; Muse Glimmer 30B on AA Coding Index, ALE-Bench and AA Intelligence Index. 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
GPT-5.2 Pro not benchmarked, Muse Glimmer 30B 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
GPT-5.2 Pro $168.00 against Muse Glimmer 30B $1.35 per million output tokens, 124.4x apart.
Context window
GPT-5.2 Pro takes 400K tokens, Muse Glimmer 30B 131K.

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 Index2 boards measured
Coding benchmarks for GPT-5.2 Pro and Muse Glimmer 30B
BenchmarkGPT-5.2 ProMuse Glimmer 30BLeader
AA Coding IndexNot measured49.0Only Muse Glimmer 30B measured
ALE-BenchNot measured962.5Only Muse Glimmer 30B measured
Neither model has a result on the other 37 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Intelligence benchmarks for GPT-5.2 Pro and Muse Glimmer 30B
BenchmarkGPT-5.2 ProMuse Glimmer 30BLeader
AA Intelligence IndexNot measured17.5Only Muse Glimmer 30B measured
Epoch Capabilities Index156.3Not measuredOnly GPT-5.2 Pro measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Agentic work benchmarks for GPT-5.2 Pro and Muse Glimmer 30B
BenchmarkGPT-5.2 ProMuse Glimmer 30BLeader
AA Agentic IndexNot measured8.5Only Muse Glimmer 30B measured
Neither model has a result on the other 40 boards here
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
Reasoning benchmarks for GPT-5.2 Pro and Muse Glimmer 30B
BenchmarkGPT-5.2 ProMuse Glimmer 30BLeader
ARC-AGI90.5%Not measuredOnly GPT-5.2 Pro measured
ARC-AGI-254.2%Not measuredOnly GPT-5.2 Pro measured
SimpleBench57.4%Not measuredOnly GPT-5.2 Pro measured
Chess puzzles60.0%Not measuredOnly GPT-5.2 Pro measured
Neither model has a result on the other 18 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Math benchmarks for GPT-5.2 Pro and Muse Glimmer 30B
BenchmarkGPT-5.2 ProMuse Glimmer 30BLeader
FrontierMath, tiers 1 to 374.0%Not measuredOnly GPT-5.2 Pro measured
FrontierMath, tier 446.0%Not measuredOnly GPT-5.2 Pro measured
Neither model has a result on the other 11 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Web design benchmarks for GPT-5.2 Pro and Muse Glimmer 30B
BenchmarkGPT-5.2 ProMuse Glimmer 30BLeader
Design Arena: game devNot measured1144Only Muse Glimmer 30B measured
Neither model has a result on the other 8 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

GPT-5.2 Pro$0.105Fits in one request
Muse Glimmer 30B$0.0010Fits in one request

Muse Glimmer 30B costs less

Repository review

50K input + 3K output tokens

GPT-5.2 Pro$1.55Fits in one request
Muse Glimmer 30B$0.020Fits in one request

Muse Glimmer 30B costs less

Agent loop

200K input + 10K output tokens

GPT-5.2 Pro$5.88Fits in one request
Muse Glimmer 30B$0.079Exceeds the context window

Muse Glimmer 30B 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 GPT-5.2 Pro and Muse Glimmer 30B
SpecificationOpenAI GPT-5.2 ProMeta Muse Glimmer 30B
MakerOpenAIMeta
WeightsNo public weights listedOpen weights
ReleasedDecember 10, 2025August 9, 2026
Context window400K131K
Input $/Mtok$21.00$0.325
Output $/Mtok$168.00$1.35
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.2 Pro better than Muse Glimmer 30B for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick GPT-5.2 Pro for a larger context window (400K against 131K tokens).

Which is cheaper, GPT-5.2 Pro or Muse Glimmer 30B?

GPT-5.2 Pro costs $21.00 per million input tokens and $168.00 per million output tokens; Muse Glimmer 30B costs $0.325 and $1.35. Cost per solved task is known for neither of them.

Which has the bigger context window, GPT-5.2 Pro or Muse Glimmer 30B?

GPT-5.2 Pro, with 400K tokens against 131K.

Has any benchmark tested both GPT-5.2 Pro and Muse Glimmer 30B?

No benchmark has tested both yet. GPT-5.2 Pro has results on Epoch Capabilities Index, ARC-AGI and ARC-AGI-2; Muse Glimmer 30B on AA Coding Index, ALE-Bench and AA Intelligence Index. Compare them on price and context instead. Data as of October 22, 2026.

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