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Every score has a dated snapshot.

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  3. GPT-5.6 Terra vs Mistral: Mistral Small 4

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

GPT-5.6 Terra vs Mistral: Mistral Small 4 benchmark

In this head-to-head showdown, Mistral: Mistral Small 4 is more budget-friendly at $0.6/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose GPT-5.6 Terra if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Mistral: Mistral Small 4 if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
Share Analysis:
WhatsAppTelegramXLinkedInReddit
OpenAI
GPT-5.6 Terra

OpenAI 5.6 mid tier. Official API $2/$12 per 1M after the Jul 30 2026 price cut.

Terra Mid-TierElo 1,548$6/1M out
Mistral
Mistral: Mistral Small 4

Auto-discovered from OpenRouter (mistralai/mistral-small-2603). Preview until a second source matches.

$0.6/1M out

GPT-5.6 Series Family & Variants (3)

Speed, cost, and intelligence tradeoffs across the OpenAI lineup

vs Base Model
GPT-5.6 Sol
OpenAI
Base Model
ReasoningFast Route
Elo1608
Speed84 t/s
In /1M$5
Out /1M$30
View specs →vs this
GPT-5.6 Terra
OpenAI
Terra Mid-Tier
Fast Route
Elo1548
Speed128 t/s
In /1M$1
Out /1M$6
-60 Elo-80% price1.5x speed
Selected
GPT-5.6 Luna
OpenAI
Luna Fast / Volume
Fast Route
Elo1466
Speed188 t/s
In /1M$0.1
Out /1M$0.6
-142 Elo-98% price2.2x speed
View specs →vs this
Top Rival Showdowns for GPT-5.6 Terra
All Matchups
Compare vs:vs Claude Opus 4.5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar Leader

Mistral: Mistral Small 4

$0.6 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect
Percentile 0–100
Dimensional AdvantageGPT-5.6 Terra 5/6
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

GPT-5.6 Terra (8)vsMistral: Mistral Small 4 (2)
GPT-5.6 Terra: 8W (80%)Overall: GPT-5.6 TerraMistral: Mistral Small 4: 2W (20%)
← GPT-5.6 TerraMistral: Mistral Small 4 →
GPT-5.6 Terra (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo
1,548vs—
Coding Elo
1,542vs—
SWE-bench
70.4%vs—
LiveBench
69.1%vs—
GPQA Diamond
82%vs—
GPT-5.6 Terra: 5WMistral: Mistral Small 4: 0W
GPT-5.6 Terra (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed
128 tok/svs—
Time to first token
160 msvs—
GPT-5.6 Terra: 2WMistral: Mistral Small 4: 0W
Mistral: Mistral Small 4 (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price
$6/1Mvs$0.6/1M
Input price
$1/1Mvs$0.15/1M
Context window
1.1Mvs262k
GPT-5.6 Terra: 1WMistral: Mistral Small 4: 2W

Side-by-Side Benchmark Matrix

Preference Elo
GPT-5.6 Terra1,548
lmarena · Aug 16, 2026
Mistral: Mistral Small 4—
Coding Elo
GPT-5.6 Terra1,542
lmarena · Aug 16, 2026
Mistral: Mistral Small 4—
LiveBench
GPT-5.6 Terra69.1%
livebench · Aug 16, 2026
Mistral: Mistral Small 4—
SWE-bench
GPT-5.6 Terra70.4%
swebench · Aug 16, 2026
Mistral: Mistral Small 4—
GPQA Diamond
GPT-5.6 Terra82%
seed-bootstrap · Aug 16, 2026
Mistral: Mistral Small 4—
Time to first token
GPT-5.6 Terra160 ms
seed-bootstrap · Aug 16, 2026
Mistral: Mistral Small 4—
Output speed
GPT-5.6 Terra128 tok/s
seed-bootstrap · Aug 16, 2026
Mistral: Mistral Small 4—
Input priceMistral: Mistral Small 4 (+$0.85/1M)
GPT-5.6 Terra$1/1M
openrouter · Aug 17, 2026
Mistral: Mistral Small 4$0.15/1M
openrouter · Aug 17, 2026
Output priceMistral: Mistral Small 4 (+$5.4/1M)
GPT-5.6 Terra$6/1M
openrouter · Aug 17, 2026
Mistral: Mistral Small 4$0.6/1M
openrouter · Aug 17, 2026
Context windowGPT-5.6 Terra (+788k)
GPT-5.6 Terra1.1M
openrouter · Aug 17, 2026
Mistral: Mistral Small 4262k
openrouter · Aug 17, 2026
BenchmarkGPT-5.6 TerraMistral: Mistral Small 4Advantage Delta
Preference Elo
1,548
lmarena · Aug 16, 2026
——
Coding Elo
1,542
lmarena · Aug 16, 2026
——
LiveBench
69.1%
livebench · Aug 16, 2026
——
SWE-bench
70.4%
swebench · Aug 16, 2026
——
GPQA Diamond
82%
seed-bootstrap · Aug 16, 2026
——
Time to first token
160 ms
seed-bootstrap · Aug 16, 2026
——
Output speed
128 tok/s
seed-bootstrap · Aug 16, 2026
——
Input price
$1/1M
openrouter · Aug 17, 2026
$0.15/1M
openrouter · Aug 17, 2026
Mistral: Mistral Small 4 (+$0.85/1M)
Output price
$6/1M
openrouter · Aug 17, 2026
$0.6/1M
openrouter · Aug 17, 2026
Mistral: Mistral Small 4 (+$5.4/1M)
Context window
1.1M
openrouter · Aug 17, 2026
262k
openrouter · Aug 17, 2026
GPT-5.6 Terra (+788k)
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 89% with Mistral: Mistral Small 4
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
GPT-5.6 Terra$125.00 / mo
In: $35Out: $90
Mistral: Mistral Small 4$14.25 / mo
In: $5.25Out: $9
Estimated Cost Delta

Mistral: Mistral Small 4 is estimated to save $110.75/month ($1,329/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Mistral: Mistral Small 4:Pick Mistral: Mistral Small 4 when you are optimizing output cost.
  • 2
    GPT-5.6 Terra:Pick GPT-5.6 Terra for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatMistral: Mistral Small 4

Lower output list price ($0.6/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-5.6 Terra

Larger window (1.1M).

Screenshots / visionGPT-5.6 Terra

GPT-5.6 Terra is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatMistral: Mistral Small 4Lower output list price ($0.6/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGGPT-5.6 TerraLarger window (1.1M).
Screenshots / visionGPT-5.6 TerraGPT-5.6 Terra is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
priceJul 30, 2026

GPT-5.6 Terra after the Jul 30 cut: $2/$12 mid-tier

Terra is OpenAI’s Sonnet-class invoice. Use it when Sol is too expensive and Luna is too small.

Community Sentiment

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
OpenAI

GPT-5.6 Terra

Elo 1,548
LiveBench69.1%
SWE-bench70.4%
Speed128 tok/s
Output cost$6/1M
Mistral

Mistral: Mistral Small 4

Elo n/a
LiveBench—
SWE-bench—
Speed—
Output cost$0.6/1M

Frequently Asked Questions

Which is better overall, GPT-5.6 Terra or Mistral: Mistral Small 4?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, GPT-5.6 Terra or Mistral: Mistral Small 4?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Mistral: Mistral Small 4 output tokens are $0.6/1M versus $6/1M. Input prices and retry rates still move the real bill.
Which is faster, GPT-5.6 Terra or Mistral: Mistral Small 4?
We do not have TTFT for both models.
Which has the larger context window?
GPT-5.6 Terra accepts 1.1M tokens versus 262k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. GPT-5.6 Terra and Mistral: Mistral Small 4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • price · Jul 30, 2026

    GPT-5.6 Terra after the Jul 30 cut: $2/$12 mid-tier

Similar Head-to-Head Comparisons

All GPT-5.6 Terra matchups →|All Mistral: Mistral Small 4 matchups →
GPT-4.5 Orion vs GPT-5.6 TerraGPT-5 vs GPT-5.6 TerraGPT-5.6 Sol vs GPT-5.6 TerraMistral Large 3 vs GPT-5.6 TerraOpenAI: o3 Mini vs GPT-5.6 TerraOpenAI: o1 vs GPT-5.6 Terra