Head-to-Head Model Comparison

Laguna XS 2.1 vs GPT-6.1 Sol

Benchmarks, API Token Pricing, Context Window & Speed Comparison

Reviewed by the GetInfoUs research teamLast reviewed: October 2026Editorial policy
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PoolsideOpenAIlightweightflagship

Compare Laguna XS 2.1 by Poolside against GPT-6.1 Sol by OpenAI across real-world coding, reasoning, token economics, and latency.

Head-to-Head Comparison

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Poolside

Laguna XS 2.1

Ultra-Cheap Coding

Poolside's hyper-efficient coding model engineered for instant linting, unit test synthesis, and high-frequency developer workflows.

Intelligence Index77 / 100
Input Token:

$0.05 / 1M

Output Token:

$0.20 / 1M

Context Window:

262.1K tokens

SWE-bench Verified:

N/A

OpenAI

GPT-6.1 Sol

Near-Astra Value

Delivers results close to GPT-6 Astra at roughly one fifth of the price — the latest 2026 release.

Intelligence Index94 / 100
Input Token:

$2.00 / 1M

Output Token:

$10.00 / 1M

Context Window:

1M tokens

SWE-bench Verified:

82.3%

Key Differences at a Glance

  • Laguna XS 2.1 is 46.3x cheaper for API usage (input + output tokens combined).
  • GPT-6.1 Sol has a larger context window (1M vs 262K tokens).
  • Laguna XS 2.1 is faster at 165 tok/s vs 120 tok/s.
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
FeatureLaguna XS 2.1GPT-6.1 Sol
Intelligence Index
Composite reasoning & knowledge score (0-100)
7794
Provider
PoolsideOpenAI
Input Price
Cost per million input tokens
$0.05 / 1M$2.00 / 1M
Output Price
Cost per million output tokens
$0.20 / 1M$10.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$0.03 / 1M$1.47 / 1M
Context Window
Maximum input + output tokens
262.1K tokens~393 A4 pages of text1M tokens~1,500 A4 pages of text
Max Output Tokens
Per single request
8K128K
Throughput Speed
Tokens generated per second
165 tok/s120 tok/s
SWE-bench Verified
Real-world software engineering
N/A82.3%
GPQA Diamond
Graduate-level reasoning
N/A80.8%
Cached Input Price
Prompt caching discount per 1M tokens
$0.01 / 1M$0.10 / 1M

Who Wins Where?

At-a-glance decision framework
Coding

Evaluations ongoing

Cost
Laguna XS 2.1
46.3x cheaper monthly runtime
Speed
Laguna XS 2.1
+38% faster generation
Context
GPT-6.1 Sol
1M tokens window

Empirical Head-to-Head Benchmark Scores

Official evaluation metrics verified by independent third-party research labs.

Laguna XS 2.1GPT-6.1 Sol
SWE-bench Verified (Autonomous Coding)

Industry benchmark evaluating real-world GitHub issue resolution and multi-file debugging.

N/Avs82.3%
GPQA Diamond (Doctorate-Level Science & Math)

Challenging questions created by domain experts to test complex PhD-level reasoning.

N/Avs80.8%
MMLU-Pro (Multi-task Language Understanding)

Hardened reasoning and academic knowledge benchmark with reduced lucky-guess probability.

74%vs89.9%
LMSYS Chatbot Arena Elo

Crowdsourced human preference evaluation based on blind, head-to-head model battles.

1280ptsvs1519pts
Humanity's Last Exam (Frontier Expert Knowledge)

Extremely difficult, closed-ended questions spanning the frontier of human expert knowledge.

N/Avs18.1%
Terminal-Bench (Agentic Coding & Terminal Use)

Autonomous multi-step tasks executed inside a real command-line terminal environment.

N/Avs63.6%
SciCode (Scientific Computing)

Research-grade coding problems drawn from real scientific and numerical workloads.

N/Avs54.8%
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

64%vs79.7%
AIME (Advanced Math Competition)

American Invitational Mathematics Examination — multi-step Olympiad-level reasoning.

N/Avs93.5%
Long-Context Reasoning

Accuracy when reasoning over very large inputs that fill the model context window.

N/Avs91%
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

165 tok/s vs120 tok/s

Latency & Response Time

Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.

Time to First Token (TTFT)Lower is better
Laguna XS 2.10.24s
GPT-6.1 Sol1.12s
Est. End-to-End Response (500 tokens)TTFT + generation time
Laguna XS 2.13.27s
GPT-6.1 Sol5.29s

Real-Time Interactive Token Cost Simulator

Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.

100K / day
10K500K1M
30K / day
5K150K300K
50% cached
0% (Cold)50%90% (Warm)
Laguna XS 2.1 Monthly API Bill
$0.26 / month
$0.05/1M in · $0.2/1M out
GPT-6.1 Sol Monthly API Bill
$12.15 / month
$2/1M in · $10/1M out
Laguna XS 2.1 saves approximately $11.89 / month (98%) under this workload.46.3x Savings

Laguna XS 2.1 · Strengths & Key Advantages

  • Ultra-cheap pricing ($0.05 / 1M input) tailored for continuous developer integration
  • High coding accuracy on everyday scripts, boilerplate, and test cases
  • Sub-250ms latency ideal for inline IDE code suggestions
Considerations & Trade-offs
  • Not designed for general non-programming topics or creative writing
  • Struggles with large-scale distributed systems architectural planning

GPT-6.1 Sol · Strengths & Key Advantages

  • Near-Astra results at roughly a fifth of the cost
  • Excellent coding and long-horizon agent performance
  • Strong reliability with far lower latency than Astra
  • Near-flagship results at roughly a fifth of the price
Considerations & Trade-offs
  • Still marginally behind Astra on the very hardest reasoning
  • Same price as GPT-6 Sol, so the upgrade decision is easy

Token Use & Task Economics

Estimated cost and token consumption to complete one representative agentic task.

MetricLaguna XS 2.1GPT-6.1 Sol
Cost per Task
Estimated USD to finish one task
$0.01$2.05
Output Tokens / Task
Tokens generated per task
12K62K
Reasoning Tokens / Task
Thinking tokens burned per task
0K36K

Technical Specifications

Architecture, release timeline, capabilities, and modalities.

FeatureLaguna XS 2.1GPT-6.1 Sol
Official API Model ID (SDK)laguna-xs-2-1gpt-6-1-sol
API ProtocolPoolside REST API (OpenAI-Compatible)OpenAI Responses API & Chat Completions v1
Release Date2026-072026-09
Knowledge CutoffMay 2026April 2026
ArchitectureUltra-Fast Code Optimization TransformerNear-Astra unified reasoning model
ParametersConfidentialConfidential
Enterprise Rate Limits (RPM / TPM)5,000 – 15,000 RPM (Production Tier) · 800,000 – 2,000,000 TPM10,000 – 30,000 RPM (Tier 5 Enterprise) · 4,000,000 – 10,000,000 TPM
Long-Context Tier (>128K/200K)Flat rate ($0.05/1M in) across full 262K windowFlat rate ($2/1M in) across full 1000K window
Prompt Cache Policy & TTLCached input at $0.005/1M tokensAutomatic prefix caching at $0.1/1M (no extra cache-write fee)
Computer Use / GUI AgentAPI / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop)Supported (Screen coordinate grounding, browser & desktop GUI action loops)
MCP & Parallel Tool CallingNative MCP Client/Server ready · Parallel function calling · 100% Strict JSON SchemaNative MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema
Web Search Grounding & SandboxSupported via external Tavily/Exa Search & E2B/Docker Sandbox toolsNative Web Search tool + Hosted Code Interpreter & File Search RAG
Official Fine-Tuning SupportAPI Prompt Engineering & RAG DistillationSupervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT)
Multimodal Token BillingText BPE (~4 chars/token)Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile)
Quantization & Min GPU VRAMCloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)
Safety & Frontier ClassificationPoolside Production Safety & Alignment VerifiedOpenAI Preparedness Framework Audited & System Card Published
Enterprise Compliance (ZDR/HIPAA/SOC2)SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise TierSOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier
Input Modalitiestexttext, vision
Output Modalitiestexttext

Laguna XS 2.1 vs GPT-6.1 Sol: Quick Answers

Which is more intelligent, Laguna XS 2.1 or GPT-6.1 Sol?

GPT-6.1 Sol is more intelligent. It scores 94 compared with 77 on the composite Intelligence Index.

Which model is faster?

Laguna XS 2.1 is faster, generating 165 tokens per second compared with 120 tokens per second.

Which model is cheaper to run?

Laguna XS 2.1 is cheaper at $0.03 per 1M tokens blended, compared with $1.47 (7:2:1 cache:input:output ratio).

Which model has lower latency?

Laguna XS 2.1 has lower latency, with a time to first token of 0.24s compared with 1.12s.

Which model has a larger context window?

GPT-6.1 Sol has a larger context window, supporting 1M tokens compared with 262.1K tokens.

Verdict

Choose Laguna XS 2.1 for ide autocompletion, ci/cd automated test generation, and pull request syntax checking, or choose GPT-6.1 Sol for the best value frontier model for professional and agentic work.

Frequently asked questions

Which is cheaper: Laguna XS 2.1 or GPT-6.1 Sol?+

Laguna XS 2.1 costs $0.05/1M input and $0.2/1M output tokens, while GPT-6.1 Sol costs $2/1M input and $10/1M output tokens.

Which model has a larger context window: Laguna XS 2.1 or GPT-6.1 Sol?+

Laguna XS 2.1 supports 262K tokens whereas GPT-6.1 Sol supports 1M tokens.

AI Terminology & Guide
Explore Glossary →

Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.

Benchmark scores, token prices, and rate limits evolve rapidly as AI labs release model updates. Always verify current specifications and pricing on the official provider documentation.

Sources: Poolside & OpenAI Official Documentation