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GPT-5
openai·openai/gpt-5-2·BETA·Closed·gpt series
Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows
At a glance
Official price$1.25 / $10.00 per 1M
Cache read $0.125 · OpenAI
Lowest paid$1.07 / $8.50
OpenCode Zen Gateway · 1.3× spread
Context400,000
Output limit128,000
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
Modalities
TextImagePDF
Knowledge cutoff2024-09-30
Released / updated2025-08-07 / 2025-08-07
Quality & performanceArtificial Analysis · Intelligence Index v4.1 · rep. tier high
Intelligence35.3
Value12
Coding37.8
Agentic26.5
Output speed81 tok/s
TTFT98.85 s
Cost per task$0.2572
Value formulaIQ 35.3 ÷ min blended $2.928 = 12
Reasoning tier → intelligence / speed (higher tier = stronger but slower)
ChatGPTIQ 15.4
minimalIQ 17.3 · 78 tok/s
lowIQ 31.9 · 68 tok/s
mediumIQ 34.6 · 82 tok/s
highIQ 35.3 · 81 tok/s
Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.
Available at 28 providers25 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| OpenCode Zen gpt-5 | Gateway | $1.07 | $8.50 | $0.107 | — | 400,000 | 128,000 | |
| Poe openai/gpt-5 | Gateway | $1.10 | $9.00 | $0.11 | — | 400,000 | 128,000 | |
| OrcaRouter openai/gpt-5 | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| NanoGPT openai/gpt-5 | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| Impossibl openai/gpt-5 | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| OpenRouter openai/gpt-5 | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| Databricks databricks-gpt-5 | Cloud | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| OpenAIOfficial gpt-5 | First-party | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| NEAR AI Cloud openai/gpt-5 | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
| Merge Gateway openai/gpt-5 | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 | |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1OpenCode Zen$523.44
2Poe$551.20
3ZenMux$614.40
4OrcaRouter$615.00
5NanoGPT$615.00
6Impossibl$615.00
9OpenAI · Official$615.00
Switch to OpenCode Zen to save $91.56/mo (15%). The gap is small, so staying on the official channel is fine.
Note: this is a gateway; verify availability and rate limits yourself.
Benchmark2 items
| Name | Conditions | Score | Metric | Source |
|---|---|---|---|---|
| Aider Polyglot | — | 88 | percent correct | Source ↗ |
| SWE-Bench Pro | dataset: public | 41.78 | resolve rate | Source ↗ |
The same benchmark scores very differently across harness / dataset, so the qualifying conditions must be shown together.
Reasoning control
effort = minimaleffort = loweffort = mediumeffort = higheffort = none
3 / 28 providers expose no reasoning control (reasoning_options: []).
Related models
RouteLLMsame series$3.00 / $15.00GPT-Realtime-2.1same series$4.00 / $24.00NanoGPT Helpsame series$0 / $0Kimi K2.6cheaper alternative$0.95 / $4.00DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28Kimi K2.7 Codecheaper alternative$0.95 / $4.00
Price historyone sample accumulated per data sync
Input listOutput listMin blended