GPT-6 Astra
OpenAIProprietaryReleased Sep 3, 2026
On the arena.ai Agents leaderboard, GPT-6 Astra has a task success rate of 14.70% (Max, rank #2, 95% interval 12.53%–16.86%). GPT-6 Astra ranks #34 on the LMArena Text leaderboard (style control) with an Arena score of 1475.5 (±6.2, 13,293 votes). Artificial Analysis Intelligence Index: 52.7. API price: $10.00 input / $50.00 output per 1M tokens. Context: 1.05M. Nearest rivals: GLM-5.2 (1476.0) above and GPT-5.2 Chat (1475.5) below.
Quick answer
- Agents leaderboard
- #2 of 45 · 14.70% success
- Text (LMArena)
- #34 · 1475.5
- 17NAS overall
- #2 of 86
- API price (in / out)
- $10.00 / $50.00 per 1M tokens
- Closest rival
- GLM-5.2 · 1476.0
- Cheaper alternative
- Muse Spark 1.1: Text 1490.4, output $4.25 (92% cheaper)
- Data updated
- Oct 22, 2026 · synced daily
Sources: arena.ai, LMArena, Artificial Analysis, OpenRouter
Key metrics
Reasoning effort comparison
Artificial Analysis measurements per reasoning effort of the same model| Effort | Intelligence | Coding | tok/s | TTFT (s) | First answer (s) |
|---|---|---|---|---|---|
| maxUsed in table | 52.7 | 76.9 | 61 | 229 | 229 |
| xhigh | 52.4 | 75.9 | 62 | 133 | 133 |
| high | 50.9 | 77.1 | 49 | 53 | 53 |
| medium | 49.6 | 76.7 | 50 | 8.5 | 8.5 |
| low | 45.8 | 75.7 | 52 | 2.1 | 2.1 |
Models ranked nearby
Sorted by Arena score| # | Model | Arena | Intel. | Output $ | tok/s |
|---|---|---|---|---|---|
| 26 |  Gemini 3.5 Flash | 1477.5 | 32.6 | $9.00 | – |
| 27 |  Claude Sonnet 5.5 | 1477.1 | 56.0 | $10.00 | 140 |
| 28 |  GLM-5.2 | 1476.0 | 33.7 | $4.40 | – |
| 29 | GPT-6 AstraThis page | 1475.5 | 52.7 | $50.00 | 61 |
| 30 | GPT-5.2 Chat | 1475.5 | – | $14.00 | – |
| 31 |  DeepSeek V4.1 Flash | 1475.3 | 39.5 | $1.20 | 205 |
| 32 | GPT-5.4 | 1475.2 | 39.0 | $15.00 | – |
More from OpenAI
| # | Model | Arena | Intel. | Output $ | tok/s |
|---|---|---|---|---|---|
| 18 | GPT-5.6 Sol | 1484.5 | 47.0 | $20.00 | – |
| 21 | GPT-5.5 | 1481.5 | 38.4 | $30.00 | – |
| 25 | GPT-6.1 Sol | 1479.4 | 51.8 | $10.00 | 57 |
| 30 | GPT-5.2 Chat | 1475.5 | – | $14.00 | – |
| 32 | GPT-5.4 | 1475.2 | 39.0 | $15.00 | – |
| 38 | GPT-5.6 Terra | 1467.1 | 42.1 | $12.00 | 142 |
Pricing
- Official API list price: $10.00 input and $50.00 output per 1M tokens (USD).
- At a typical 3:1 input-to-output ratio, the blended cost is about $20.00 per 1M tokens.
- Among 81 models with an output price, it is the #78 cheapest.
- The cheapest OpenRouter route charges $10.00 input / $50.00 output.
Sources & methodology
On the arena.ai Agents leaderboard, GPT-6 Astra has a task success rate of 14.70% (Max, rank #2, 95% interval 12.53%–16.86%).
- arena.ai Agents — agent task success rate, 95% interval, sessions and rank (via the public Hugging Face dataset, CC BY 4.0).
- LMArena — Arena score (Text leaderboard with style control, the same view arena.ai shows by default), 95% confidence interval, votes and rank.
- Artificial Analysis — Intelligence / Coding Index, output speed and latency (medians).
- OpenRouter — Route prices, context length and listing date.
Arena scores use the Bradley-Terry model (not Elo); ± is the half-width of the 95% confidence interval. Latency figures are Artificial Analysis medians; for reasoning models, time to first token and to first answer include the thinking phase. Data syncs daily at 14:20 (UTC+8).
Limits: Arena scores come from anonymous users voting on chats, so they reflect conversational preference rather than agent or coding benchmarks; with few votes the interval is wide and ranks move. Prices and speeds change as providers update them.
FAQ
How does GPT-6 Astra do on the Agents leaderboard?
On the arena.ai Agents leaderboard, GPT-6 Astra has a task success rate of 14.70% (Max, rank #2, 95% interval 12.53%–16.86%).
What rank is GPT-6 Astra right now?
GPT-6 Astra is #29 on our leaderboard of 69 scored models (Arena score 1475.5); its raw LMArena rank is #34.
What does GPT-6 Astra cost via API?
Input $10.00 / output $50.00 per 1M tokens (official API list price; the OpenRouter quote when no official price is available). At a typical 3:1 input-to-output ratio, the blended cost is about $20.00 per 1M tokens.
How fast is GPT-6 Astra?
Artificial Analysis measures about 61 output tokens per second, 229 s to the first token and 229 s to the first answer token; it is a reasoning model, so latency includes thinking time.
How close is GPT-6 Astra to the models ranked next to it?
It is 0.5 points behind GLM-5.2 (1476.0) and 0.0 points ahead of GPT-5.2 Chat (1475.5); gaps smaller than the confidence interval (±6.2) are not significant.
Is GPT-6 Astra open source? Can it be self-hosted?
GPT-6 Astra is a closed model, available only via official APIs or hosted services.
What is the context length of GPT-6 Astra?
1.05M (1,050,000 tokens, as listed on OpenRouter).
GPT-6 Astra vs GLM-5.2: which is better?
On the LMArena Text leaderboard GPT-6 Astra scores 1475.5 and GLM-5.2 scores 1476.0 (a 0.5-point gap, within the confidence interval, so not significant). Agent task success: GPT-6 Astra 14.70%, GLM-5.2 2.11%. On price, GPT-6 Astra costs $50.00 and GLM-5.2 $4.40 per 1M output tokens.
Is there a cheaper model close to GPT-6 Astra?
Yes: Muse Spark 1.1 scores 1490.4 on the Text leaderboard (GPT-6 Astra: 1475.5) and costs $4.25 per 1M output tokens, about 92% less than GPT-6 Astra ($50.00).
Where does the GPT-6 Astra data come from and how often is it updated?
Agent success rates come from the arena.ai Agents leaderboard (CC BY 4.0), Text scores from LMArena, intelligence and speed from Artificial Analysis, and prices and context from official list prices and OpenRouter. 17NAS syncs daily at 06:20 UTC; this page was last updated Oct 22, 2026.