Model comparison

Grok 4.6 vs Jamba Large

Grok 4.6 has enough public results to be ranked (#21); Jamba Large does not yet, so treat this comparison as directional.

Last verified . 0 shared benchmarks.

Grok 4.6 xAI

56.9

Rank #21 Confirmed

Jamba Large AI21 Labs

33.1

Unranked Sparse

Summary

  • The widest gap is in reasoning, where Grok 4.6 leads 61.4 to 18.0.
  • Grok 4.6 is cheaper at $2 / $6 per million input/output tokens, against $2 / $8 for Jamba Large.
  • Grok 4.6 accepts more context: 500K tokens versus 256K.
  • Jamba Large has downloadable open weights; the other is API-only.

Side by side

Grok 4.6 and Jamba Large specifications
Grok 4.6Jamba Large
ProviderxAIAI21 Labs
Noometry Index56.933.1
Released2026-08-122025-07-01
WeightsProprietaryOpen
Context window500K256K
Max output500K4K
Input $ / M tokens$2$2
Output $ / M tokens$6$8
Results tracked492

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Category by category

Coding Not comparable

Grok 4.6: 58.5 (#16), Jamba Large: —

Coding benchmarks
BenchmarkGrok 4.6Jamba Large
DeepSWE67.5%—
FrontierCode48%—
CursorBench41.4%—
LMArena WebDev1617—
FrontierSWE25.3%—
SciCode56.5%—
WeirdML67.3%—
LMArena Coding1465—
ALE-Bench1,508—

Agentic & Tool Use Not comparable

Grok 4.6: 39.4 (#27), Jamba Large: —

Agentic & Tool Use benchmarks
BenchmarkGrok 4.6Jamba Large
APEX-Agents65.3%—
GDP.pdf17.2%—
Vending-Bench 29,047—

Reasoning Grok 4.6 leads

Grok 4.6: 61.4 (#20), Jamba Large: 18.0

Reasoning benchmarks
BenchmarkGrok 4.6Jamba Large
ARC-AGI-267.1%—
SimpleBench75.9%—
Kagi LLM Benchmark—26.1%
NYT Connections (extended)80%—
ARC-AGI-187.5%—
CritPt19.7%—
Chess Puzzles40%—
EBR-Bench30.5%—
LMArena Hard Prompts1447—
Mystery Game Puzzles34%—
DTBench97.3%—
LMCA48.5%—
Epoch Capabilities Index156.44—

Math Not comparable

Grok 4.6: 67.0 (#24), Jamba Large: —

Math benchmarks
BenchmarkGrok 4.6Jamba Large
FrontierMath (Tiers 1-3)66%—
FrontierMath Tier 431.7%—
OTIS Mock AIME 2024-202599.2%—
ProofBench51%—
LMArena Math1423—

Knowledge Grok 4.6 leads

Grok 4.6: 63.3 (#20), Jamba Large: 37.7

Knowledge benchmarks
BenchmarkGrok 4.6Jamba Large
GPQA Diamond94%—
SimpleQA Verified49.3%—
Vectara Hallucination Rate—9.7%
LMArena Expert1467—

Multimodal Not comparable

Grok 4.6: 43.6 (#23), Jamba Large: —

Multimodal benchmarks
BenchmarkGrok 4.6Jamba Large
LMArena Vision1263—
Blueprint-Bench 233.2%—
Furniture Assembly40%—
LMArena Document1452—

Multilingual Not comparable

Grok 4.6: 53.0 (#74), Jamba Large: —

Multilingual benchmarks
BenchmarkGrok 4.6Jamba Large
LMArena Non-English1420—
LMArena Chinese1480—
LMArena French1461—
LMArena German1431—
LMArena Japanese1376—
LMArena Korean1397—
LMArena Russian1422—
LMArena Spanish1404—

Instruction Following Not comparable

Grok 4.6: 75.4 (#63), Jamba Large: —

Instruction Following benchmarks
BenchmarkGrok 4.6Jamba Large
LMArena Instruction Following1431—

Long Context Not comparable

Grok 4.6: 44.5 (#66), Jamba Large: —

Long Context benchmarks
BenchmarkGrok 4.6Jamba Large
LMArena Longer Query1454—

Writing & Preference Not comparable

Grok 4.6: 62.3 (#80), Jamba Large: —

Writing & Preference benchmarks
BenchmarkGrok 4.6Jamba Large
LMArena Text1428—
LMArena Creative Writing1428—
LMArena Multi-Turn1425—

Frequently asked questions

Is Grok 4.6 better than Jamba Large?

Grok 4.6 has enough public results to be ranked (#21); Jamba Large does not yet, so treat this comparison as directional.

Which is cheaper, Grok 4.6 or Jamba Large?

Grok 4.6 is cheaper. It lists at $2 per million input tokens and $6 per million output tokens; Jamba Large lists at $2 and $8.

Which has the bigger context window?

Grok 4.6 does, with 500K tokens against 256K.

How many benchmarks do Grok 4.6 and Jamba Large share?

0 benchmarks have published results for both models. Grok 4.6 has 49 scored results on Noometry and Jamba Large has 2.

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