Coding
Directional only- Grok Code Fast 1
- 70.8
- Inkling
- 68.6
- Weighted basis
- 1 vs 2 rows
- Reading
- Directional only
Grok Code Fast 1 vs Inkling
Updated August 29, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.
Decision reading
Inkling has the higher public score, 67.02 versus 38, and the 90% score intervals do not overlap.
1 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.
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
Inkling
Inkling has the larger documented context window.
Confidence: documented
Chat turn cost
1K fresh input + 500 output tokens
Grok Code Fast 1
Grok Code Fast 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
Grok Code Fast 1
Grok Code Fast 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
Grok Code Fast 1
Grok Code Fast 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
The category averages use different weighted benchmark sets, so they are directional rather than like-for-like.
Confidence: limited
Agentic work
Tool use, computer use, and multi-step task completion
Not enough matched evidence
No shared weighted benchmark basis supports a winner.
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 Shared
14 Inkling only
- Shared results
- 1
- Grok Code Fast 1 only
- 0
- Inkling only
- 14
- Like-for-like categories
- 0 / 8
1 category uses different evidence sets. Those rows remain visible for coverage context but do not name a winner.
Category results, on a stated basis
Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.
Agentic
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- 69.4
- Weighted basis
- 0 vs 2 rows
- Reading
- Not comparable
Reasoning
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Knowledge
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- 51.6
- Weighted basis
- 0 vs 2 rows
- Reading
- Not comparable
Math
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- 97.1
- Weighted basis
- 0 vs 1 rows
- Reading
- Not comparable
Multilingual
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Multimodal
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- 76.5
- Weighted basis
- 0 vs 2 rows
- Reading
- Not comparable
Instruction following
Not comparable- Grok Code Fast 1
- Not measured
- Inkling
- 79.8
- Weighted basis
- 0 vs 1 rows
- Reading
- Not comparable
| Category | Grok Code Fast 1 | Inkling | Weighted basis | Reading |
|---|---|---|---|---|
| Coding | 70.8 | 68.6 | Directional only1 vs 2 rows | Directional only |
| Agentic | Not measured | 69.4 | Not comparable0 vs 2 rows | Not comparable |
| Reasoning | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Knowledge | Not measured | 51.6 | Not comparable0 vs 2 rows | Not comparable |
| Math | Not measured | 97.1 | Not comparable0 vs 1 rows | Not comparable |
| Multilingual | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Multimodal | Not measured | 76.5 | Not comparable0 vs 2 rows | Not comparable |
| Instruction following | Not measured | 79.8 | Not comparable0 vs 1 rows | Not comparable |
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.
Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.
SWE-bench Verified
Coding
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
- Inkling
- $0.00421
- Fits in one request
Grok Code Fast 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
- Inkling
- $0.10754
- Fits in one request
Grok Code Fast 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
- Inkling
- $0.159
- Fits in one request
Grok Code Fast 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 1Inkling
Context window
Maximum documented context; output-token limits may be lower.
Grok Code Fast 1
256K
Inkling
1M
API model ID
Grok Code Fast 1
Not sourced
Inkling
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
Inkling
$0.374 per 1M cached input tokens
Documented inputs
Grok Code Fast 1
Not sourced
Inkling
Not sourced
Documented outputs
Grok Code Fast 1
Not sourced
Inkling
Not sourced
Provider availability
Grok Code Fast 1
Not sourced
Inkling
Not sourced
Reasoning profile
Grok Code Fast 1
Non-Reasoning
Inkling
Hybrid
Weight access
Grok Code Fast 1
Proprietary
Inkling
Open Weight
License
Grok Code Fast 1
Proprietary
Inkling
Open Weight
Release date
Grok Code Fast 1
2025-08-28
Inkling
2026-07-15
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
- Inkling has the higher public score, 67.02 versus 38, and the 90% score intervals do not overlap.
- Workload cost
- Repository review: $0.0145 vs $0.10754. Cache-heavy agent loop: $0.059 vs $0.159.
- Context tradeoff
- Inkling 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.
Frequently asked questions
Which is better, Grok Code Fast 1 or Inkling?
Inkling has the higher public score, 67.02 versus 38, and the 90% score intervals do not overlap. That is the clearest overall quality signal in the current public data.
Which is better for coding, Grok Code Fast 1 or Inkling?
The current coding averages use different weighted benchmark sets, so BenchLM does not name a winner from them. 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 Inkling?
The published evidence does not provide a shared weighted agentic tasks basis for both models, so BenchLM does not name a agentic tasks winner.
Which costs less, Grok Code Fast 1 or Inkling?
For the stated presets, chat costs $0.00095 on Grok Code Fast 1 and $0.00421 on Inkling; repository review costs $0.0145 and $0.10754; the cache-heavy agent loop costs $0.059 and $0.159. 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 Inkling?
Inkling has the larger documented context window: 1M, compared with 256K.
Related comparisons
Last updated August 29, 2026
Watch Grok Code Fast 1 vs Inkling
One weekly email when material rank, price, or benchmark evidence changes make this matchup worth revisiting.
Read a sample issueJoin 2,000+ readers.