Coding
Directional only- Grok Code Fast 1
- 32.5
- Estimated · #163/183
- Laguna S 2.1
- 47.8
- Estimated · #87/183
- Basis
- BenchAlign lane · 1 vs 4 public rows
- Reading
- Directional only
Grok Code Fast 1 vs Laguna S 2.1
Updated September 4, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.
Decision reading
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. Use the documented cost, context, and runtime rows instead.
0 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.
Share or export
Which one for your work
Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.
Long documents
Prompts that approach the documented context limit
Laguna S 2.1
Laguna S 2.1 has the larger documented context window.
Confidence: documented
Chat turn cost
1K fresh input + 500 output tokens
Laguna S 2.1
Laguna S 2.1 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.
Confidence: listed-rates
Cache-heavy agent loop cost
200K cached + 20K fresh input + 10K output tokens
Laguna S 2.1
Laguna S 2.1 has the lower estimated token cost for this stated workload. Grok Code Fast 1 has no published cached-input rate, so cached tokens use its listed input rate.
Confidence: rate-fallback
Show secondary and unsupported calls
Repository review cost
50K fresh input + 3K output tokens
Laguna S 2.1
Laguna S 2.1 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.
Confidence: listed-rates
Coding work
Code generation, repair, and software-engineering tasks
Not enough matched evidence
Grok Code Fast 1 and Laguna S 2.1 are scored on Estimated evidence for coding, so the reading is directional rather than like-for-like.
Confidence: limited
Agentic work
Tool use, computer use, and multi-step task completion
Not enough matched evidence
Grok Code Fast 1 is not ranked on the public lane for agentic, so no winner is named for agentic.
Confidence: limited
What is actually comparable
Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.
1 Grok Code Fast 1 only
6 Laguna S 2.1 only
- Shared results
- 0
- Grok Code Fast 1 only
- 1
- Laguna S 2.1 only
- 6
- Like-for-like categories
- 0 / 8
1 category rests on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.
Category results, on a stated basis
Each row shows the public-lane category score for both models: the BenchAlign lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.
Agentic
Not comparable- Grok Code Fast 1
- Not ranked
- Laguna S 2.1
- 48.2
- Estimated · #77/151
- Basis
- BenchAlign lane · 0 vs 2 public rows
- Reading
- Not comparable
Reasoning
Not comparable- Grok Code Fast 1
- 57.7
- Unranked · 2 rankable rows
- Laguna S 2.1
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Knowledge
Not comparable- Grok Code Fast 1
- 39.1
- Estimated · #144/181
- Laguna S 2.1
- Not ranked
- Basis
- BenchAlign lane · 0 vs 0 public rows
- Reading
- Not comparable
Math
Not comparable- Grok Code Fast 1
- Not ranked
- Laguna S 2.1
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Multilingual
Not comparable- Grok Code Fast 1
- Not ranked
- Laguna S 2.1
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Multimodal
Not comparable- Grok Code Fast 1
- Not ranked
- Laguna S 2.1
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Instruction following
Not comparable- Grok Code Fast 1
- 48.2
- #83/120
- Laguna S 2.1
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
| Category | Grok Code Fast 1 | Laguna S 2.1 | Basis | Reading |
|---|---|---|---|---|
| Coding | 32.5Estimated · #163/183 | 47.8Estimated · #87/183 | Directional onlyBenchAlign lane · 1 vs 4 public rows | Directional only |
| Agentic | Not ranked | 48.2Estimated · #77/151 | Not comparableBenchAlign lane · 0 vs 2 public rows | Not comparable |
| Reasoning | 57.7Unranked · 2 rankable rows | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Knowledge | 39.1Estimated · #144/181 | Not ranked | Not comparableBenchAlign lane · 0 vs 0 public rows | Not comparable |
| Math | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Multilingual | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Multimodal | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Instruction following | 48.2#83/120 | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign) differ from the provisional-lane categories. Unranked scores sit on the lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.
Shape of the matched evidence
Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.
A shared-evidence shape is not available.
BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.
What each workload costs
Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.
Chat turn
1K fresh input + 500 output tokens
- Grok Code Fast 1
- $0.00095
- Fits in one request
- Laguna S 2.1
- $0.0002
- Fits in one request
Laguna S 2.1 has the lower modeled cost
Costs use the listed standard API rates.
Repository review
50K fresh input + 3K output tokens
- Grok Code Fast 1
- $0.0145
- Fits in one request
- Laguna S 2.1
- $0.0056
- Fits in one request
Laguna S 2.1 has the lower modeled cost
Costs use the listed standard API rates.
Cache-heavy agent loop
200K cached + 20K fresh input + 10K output tokens
- Grok Code Fast 1
- $0.059
- Fits in one request
- Cached input priced at the published list-input rate
- Laguna S 2.1
- $0.006
- Fits in one request
Laguna S 2.1 has the lower modeled cost
Grok Code Fast 1 has no published cached-input rate, so cached tokens use its listed input rate.
Specification differences
Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.
SpecificationGrok Code Fast 1Laguna S 2.1
Context window
Maximum documented context; output-token limits may be lower.
Grok Code Fast 1
256K
Laguna S 2.1
1M
API model ID
Grok Code Fast 1
Not sourced
Laguna S 2.1
Not sourced
Cached-input rate
A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.
Grok Code Fast 1
Not published
Laguna S 2.1
$0.01 per 1M cached input tokens
Documented inputs
Grok Code Fast 1
Not sourced
Laguna S 2.1
Not sourced
Documented outputs
Grok Code Fast 1
Not sourced
Laguna S 2.1
Not sourced
Provider availability
Grok Code Fast 1
Not sourced
Laguna S 2.1
Not sourced
Reasoning profile
Grok Code Fast 1
Non-Reasoning
Laguna S 2.1
Reasoning
Weight access
Grok Code Fast 1
Proprietary
Laguna S 2.1
Open Weight
License
Grok Code Fast 1
Proprietary
Laguna S 2.1
Open Weight
Release date
Grok Code Fast 1
2025-08-28
Laguna S 2.1
2026-07-21
If you already use one of these models
- Deployment change
- The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
- Quality signal
- The public evidence has no benchmark result shared by both models, so it does not support a quality verdict.
- Workload cost
- Repository review: $0.0145 vs $0.0056. Cache-heavy agent loop: $0.059 vs $0.006.
- Context tradeoff
- Laguna S 2.1 has the larger documented window (1M).
Run the same representative tasks against both endpoints before changing production traffic.
Benchmark evidence
The full public result ledger is available for audit without forcing a wide desktop table onto a phone.
Browse raw public benchmark evidence7 rows
Agentic
Coding
SWE-bench Verified
Grok Code Fast 170.8%SourceLaguna S 2.1—Not directly comparable
Terminal-Bench 2.0
Grok Code Fast 1—Laguna S 2.170.2%SourceNot directly comparable
SWE Multilingual
Grok Code Fast 1—Laguna S 2.178.5%SourceNot directly comparable
SWE-bench Pro
Grok Code Fast 1—Laguna S 2.159.4%SourceNot directly comparable
deepSwe
Grok Code Fast 1—Laguna S 2.140.4%SourceNot directly comparable
Frequently asked questions
Which is better, Grok Code Fast 1 or Laguna S 2.1?
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. The page therefore keeps the decision tied to the specific documented workload.
Which is better for coding, Grok Code Fast 1 or Laguna S 2.1?
Laguna S 2.1 scores higher for coding on the public lane, 47.8 to 32.5. Grok Code Fast 1 and Laguna S 2.1 are scored on Estimated evidence for coding, so the reading is directional rather than like-for-like. BenchLM does not name a winner for coding from a directional reading; read the shared benchmark rows directly and test the models on the same task set.
Which is better for agentic tasks, Grok Code Fast 1 or Laguna S 2.1?
Grok Code Fast 1 is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.
Which costs less, Grok Code Fast 1 or Laguna S 2.1?
For the stated presets, chat costs $0.00095 on Grok Code Fast 1 and $0.0002 on Laguna S 2.1; repository review costs $0.0145 and $0.0056; the cache-heavy agent loop costs $0.059 and $0.006. Grok Code Fast 1 has no published cached-input rate, so cached tokens use its listed input rate.
Which has the larger context window, Grok Code Fast 1 or Laguna S 2.1?
Laguna S 2.1 has the larger documented context window: 1M, compared with 256K.
Related comparisons
Last updated September 4, 2026
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